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Missing Trenny Gibson
Missing Trenny Gibson episodes
- 14 - Dean Mortensen Update & Trenny Gibson Final Thoughts
In this episode, Crawlspace Media's Tim Pilleri and Lance Reenstierna speak with Laura Riste about the mysterious disappearance of Dean Mortensen from Edmonton, Alberta, Canada on January 24, 1992. Later, Tim and Lance share some final thoughts on their conversation with Laura about Trenny Gibson's disappearance from the Great Smoky Mountain National Park on October 8th, 1976.
This episode was previously published on Missing on March 14th, 2025
Full interview w/ Laura on Dean Mortensen was published on Missing on September 15th, 2025.
Check out Laura Riste's site on the disappearance of Trenny Gibson: https://www.canadiangurl77.com/.
Laura's FB page for Trenny: https://www.facebook.com/searching.for.trenny.
Laura on IG: https://www.instagram.com/laurariste.
Check out Michael C. Bouchard's new book on Trenny Gibson's disappearance: https://www.amazon.com/TRENNY-Disappearance-Trenny-Lynn-Gibson/dp/B0FTLY6937.
Check out Quince: https://quince.com/MISSING.
Main podcast theme by Kevin Macleod. Check out his work at https://incompetech.com/. Additional music by David Williams. See his work at http://williamsflutes.com.
Follow Missing:
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Youtube: https://www.youtube.com/missingcsm.
Apple: https://podcasts.apple.com/us/podcast/missing/id1006974447.
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Spotify: https://open.spotify.com/show/7iSnqnCf27NODdz0pJ1GvJ.
Youtube: https://www.youtube.com/crawlspace.
Apple: https://podcasts.apple.com/us/podcast/crawlspace-true-crime-mysteries/id1187326340.
Check out our entire network at http://crawlspace-media.com/.
Learn more about your ad choices. Visit megaphone.fm/adchoices
44 min - Introducing the Jordan Harbinger ShowIn this episode, Tim Pilleri and Lance Reenstierna talk about The Jordan Harbinger Show. Some of his recent guests have been absolutely fascinating. We encourage all Missing listeners to give it a try and hope you enjoy it as much as we do.3 min
- 13 - New Revelations in Trenny Gibson's Disappearance w/ Laura Riste
In this episode, Crawlspace Media's Tim Pilleri and Lance Reenstierna speak with Laura Riste about the mysterious disappearance of Trenny Gibson from the Great Smokey Mountain National Park on October 8th, 1976.
This episode was previously published on Missing on March 12th, 2026.
Check out Laura Riste's site on the disappearance of Trenny Gibson: https://www.canadiangurl77.com/.
Laura's FB page for Trenny: https://www.facebook.com/searching.for.trenny.
Laura on IG: https://www.instagram.com/laurariste.
Check out Michael C. Bouchard's new book on Trenny Gibson's disappearance: https://www.amazon.com/TRENNY-Disappearance-Trenny-Lynn-Gibson/dp/B0FTLY6937.
Check out Quince: https://quince.com/MISSING.
Main podcast theme by Kevin Macleod. Check out his work at https://incompetech.com/. Additional music by David Williams. See his work at http://williamsflutes.com.
Follow Missing:
IG: https://www.instagram.com/MissingCSM/.
TT: https://www.tiktok.com/@missingcsm.
FB: https://www.facebook.com/MissingCSM.
X: https://twitter.com/MissingCSM.
Spotify: https://open.spotify.com/show/0yRXkJrZC85otfT7oXMcri.
Youtube: https://www.youtube.com/missingcsm.
Apple: https://podcasts.apple.com/us/podcast/missing/id1006974447.
Follow Crawlspace:
IG: https://www.instagram.com/Crawlspacepodcast.
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X: https://twitter.com/crawlspacepod.
Spotify: https://open.spotify.com/show/7iSnqnCf27NODdz0pJ1GvJ.
Youtube: https://www.youtube.com/crawlspace.
Apple: https://podcasts.apple.com/us/podcast/crawlspace-true-crime-mysteries/id1187326340.
Check out our entire network at http://crawlspace-media.com/.
Learn more about your ad choices. Visit megaphone.fm/adchoices
46 min - 12 - Missing Dean Mortensen w/ Laura Riste
In this episode, Crawlspace Media's Tim Pilleri and Lance Reenstierna speak with return guest Laura Riste to discuss the mysterious disappearance of Dean Mortensen from Edmonton, Alberta, Canada on January 24th, 1992.
This episode was previously published on Missing on September 15th, 2025.
Check out Laura Riste's site on the disappearance of Trenny Gibson: https://www.canadiangurl77.com/.
Laura's FB page for Trenny: https://www.facebook.com/searching.for.trenny.
Laura on IG: https://www.instagram.com/laurariste.
If you have any information about this individual, please contact the Edmonton Police Service at 780-423-4567 or Edmonton Crime Stoppers at 1-800-222-8477 or submit your tip online: https://www.p3tips.com/tipform.aspx?ID=250#.
Sources:
https://www.edmontonpolice.ca/CrimeFiles/MissingPersons/1990to1999/MORTENSENDean.
https://macleans.ca/news/canada/dean-mortensen-disappeared-leaving-only-a-blue-ball-cap-behind/.
https://www.canadaunsolved.com/cases/missing-dean-mortensen-1992-edmonton-ab.
Follow Missing:
IG: https://www.instagram.com/MissingCSM/.
TT: https://www.tiktok.com/@missingcsm.
FB: https://www.facebook.com/MissingCSM.
X: https://twitter.com/MissingCSM.
Spotify: https://open.spotify.com/show/0yRXkJrZC85otfT7oXMcri.
Youtube: https://www.youtube.com/missingcsm.
Apple: https://podcasts.apple.com/us/podcast/missing/id1006974447.
Follow Crawlspace:
IG: https://www.instagram.com/Crawlspacepodcast.
TT: https://www.tiktok.com/@crawlspacepodcast.
FB: https://www.facebook.com/Crawlspacepodcast.
X: https://twitter.com/crawlspacepod.
Spotify: https://open.spotify.com/show/7iSnqnCf27NODdz0pJ1GvJ.
Youtube: https://www.youtube.com/crawlspace.
Apple: https://podcasts.apple.com/us/podcast/crawlspace-true-crime-mysteries/id1187326340.
Check out our entire network at http://crawlspace-media.com/.
Learn more about your ad choices. Visit megaphone.fm/adchoices
51 min - 11 - Wanted William Bradford Bishop
In this episode, Crawlspace Media's Tim Pilleri & Lance Reenstierna speak with Laura Riste about the disappearance of William Bradford Bishop.
Bishop disappeared in 1976 after slaughtering his family. If you have any information please contact your local FBI office.
This episode was previously published on May 1st, 2023 on Missing.
Thank you to Laura Riste for her help on this episode. Please check out her site about Trenny Gibson at https://www.canadiangurl77.com/ and check out the new FB page for Trenny's case: https://www.facebook.com/searching.for.trenny.
Check out our Missing subscription service where we have a bonus show and ad-free episodes! https://missing.supportingcast.fm/
To hear the Generation Why's 4-part series, follow Generation Why wherever you get your podcasts.
Go to https://airdoctorpro.com/ and use promo code MMM and, depending on the model, you’ll receive UP TO 39% off or UP TO $300 off!
Follow Missing:
TikTok: https://www.tiktok.com/@missingcsm
YouTube: https://www.youtube.com/missingcsm
IG: https://www.instagram.com/MissingCSM/
Twitter: https://twitter.com/MissingCSM
FB: https://www.facebook.com/MissingCSM
Check out our entire network at http://crawlspace-media.com/
Follow Private Investigations For the Missing and please donate if you can:
https://investigationsforthemissing.org/
http://piftm.org/donate
https://twitter.com/PIFortheMissing
https://www.facebook.com/PIFortheMissing/
https://www.instagram.com/investigationsforthemissing/
Learn more about your ad choices. Visit megaphone.fm/adchoices
55 min - 10 - Dennis Martin - Missing in the Smokies
In this episode, Tim Pilleri, Lance Reenstierna, and Jennifer Amell speak about the mysterious disappearance of Dennis Lloyd Martin from the Great Smokey Mountains National Park on June 14th, 1969. And we play clips from a conversation with researcher Laura Riste about Dennis's disappearance.
This episode was previously published on May 4th, 2023 on Missing.
Thank you to Laura Riste for her help on this episode. Please check out her site about Trenny Gibson at https://www.canadiangurl77.com/ and check out the new FB page for Trenny's case: https://www.facebook.com/searching.for.trenny.
Check out our Missing subscription service where we have a bonus show and ad-free episodes! https://missing.supportingcast.fm/
To hear the Generation Why's 4-part series, follow Generation Why wherever you get your podcasts.
Go to https://airdoctorpro.com/ and use promo code MMM and, depending on the model, you’ll receive UP TO 39% off or UP TO $300 off!
Sources:
https://en.wikipedia.org/wiki/Disappearance_of_Dennis_Martin
https://charleyproject.org/case/dennis-lloyd-martin
https://www.nps.gov/aboutus/foia/upload/1969_GRSM_DennisMartin_dissapearance_REDACTED.pdf
https://vault.fbi.gov/dennis-martin/dennis-martin-part-01-of-01
https://www.knoxnews.com/story/news/local/2019/06/06/dennis-martin-missing-smoky-mountains-disappearance/1338089001/
https://www.canammissing.com/page/page/8396197.htm
Follow Missing:
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YouTube: https://www.youtube.com/missingcsm
IG: https://www.instagram.com/MissingCSM/
Twitter: https://twitter.com/MissingCSM
FB: https://www.facebook.com/MissingCSM
Check out our entire network at http://crawlspace-media.com/
Learn more about your ad choices. Visit megaphone.fm/adchoices
1 hr 4 min - 9 - Polly Melton - Missing in the Smokies
In this episode Crawlspace Media's Tim Pilleri, Lance Reenstierna and Jennifer Amell discuss the disappearance of Thelma Pauline Melton from the Great Smoky Mountains National Park in Tennessee.
This episode was previously published on March 9th, 2023 on Missing.
On an idyllic summer afternoon while hiking with her friends in the Great Smoky Mountains National Park in Tennessee, Polly Melton disappeared into thin air. Polly was 58 at the time of her disappearance and would be 99 today.
If you have any information in Polly's case please call the Tennessee Bureau of Investigation at 615-744-4000.
Thank you to Laura Riste for her help on this episode. Please check out her site about Trenny Gibson at https://www.canadiangurl77.com/ and check out the new FB page for Trenny's case: https://www.facebook.com/searching.for.trenny.
Sources/Links
https://www.canadiangurl77.com/
https://charleyproject.org/case/thelma-pauline-melton
https://unsolvedappalachia.org/thelma-pauline-melton/
https://www.amazon.com/Unsolved-Disappearances-Great-Smoky-Mountains/dp/1880308134/
Follow Missing:
TikTok: https://www.tiktok.com/@missingcsm
YouTube: https://www.youtube.com/missingcsm
IG: https://www.instagram.com/MissingCSM/
Twitter: https://twitter.com/MissingCSM
FB: https://www.facebook.com/MissingCSM
Check out our entire network at http://crawlspace-media.com/
Learn more about your ad choices. Visit megaphone.fm/adchoices
51 min - 8 - New Trenny Gibson Updates w/ Laura Riste
In this new episode, Tim Pilleri and Lance Reenstierna speak with Laura Riste about the mysterious disappearance of Trenny Gibson from the Smoky Mountain National Park on October 8th, 1976. This is part 8 of our series on Trenny Gibson.
Laura's FB page for Trenny: https://www.facebook.com/searching.for.trenny.
Laura Riste's site devoted to Trenny at www.canadiangurl77.com.
Check out our spinoff feed for easier access to our series on Trenny:
Spotify: https://open.spotify.com/show/2Gs3ryjlC7cmMyQgqLAZjQ.
Apple: https://podcasts.apple.com/us/podcast/missing-trenny-gibson/id1542034469.
Follow Missing:
IG: https://www.instagram.com/MissingCSM/.
TT: https://www.tiktok.com/@missingcsm.
FB: https://www.facebook.com/MissingCSM.
X: https://twitter.com/MissingCSM.
Spotify: https://open.spotify.com/show/0yRXkJrZC85otfT7oXMcri.
Youtube: https://www.youtube.com/missingcsm.
Apple: https://podcasts.apple.com/us/podcast/missing/id1006974447.
Follow Crawlspace:
IG: https://www.instagram.com/Crawlspacepodcast.
TT: https://www.tiktok.com/@crawlspacepodcast.
FB: https://www.facebook.com/Crawlspacepodcast.
X: https://twitter.com/crawlspacepod.
Spotify: https://open.spotify.com/show/7iSnqnCf27NODdz0pJ1GvJ.
Youtube: https://www.youtube.com/crawlspace.
Apple: https://podcasts.apple.com/us/podcast/crawlspace-true-crime-mysteries/id1187326340.
Check out our entire network at http://crawlspace-media.com/.
Follow Private Investigations For the Missing and please donate if you can:
https://investigationsforthemissing.org/.
http://piftm.org/donate.
https://twitter.com/PIFortheMissing.
https://www.facebook.com/PIFortheMissing/.
https://www.instagram.com/investigationsforthemissing/.
Learn more about your ad choices. Visit megaphone.fm/adchoices
1 hr 25 min - Introducing Dark Valley
We are very excited to introduce to our Crawlspace listeners a bonus episode, our new podcast series called Dark Valley! This investigative true-crime series covers America's unknown serial killer, told through the lens of their only surviving victim, Jane Boroski.
In Episode 1, Begin At The End, we learn that Jane was seven months pregnant when she was stabbed 27 times by an unknown man. Miraculously, she survived. But, Jane later finds out she is the only survivor of a serial killer who prowled the Connecticut River Valley in the 1980s and killed at least 8 women before her. Now, she's here to speak for the dead.
If you enjoyed Episode 1 and want to hear more, you can listen to Episode 2, Time Will Tell, on: Apple, Spotify or wherever you get your podcasts:
Apple: https://podcasts.apple.com/us/podcast/dark-valley/id1644915712
Spotify: https://open.spotify.com/show/49pFOgXhd1viwkJsd8PEoi?si=b4f32403ede64f33
Be sure to subscribe to hear the new episodes of Dark Valley every Friday!
Please let us know what you think of Dark Valley by posting on social media and be sure to leave a good rating and review wherever you listen to your shows!
Follow Dark Valley, Crawlspace Media & Glassbox Media:
Insta: https://www.instagram.com/darkvalleyshow/
Twitter: https://twitter.com/DarkValleyShow
Facebook: https://www.facebook.com/profile.php?id=100091998017939
Follow Missing: https://linktr.ee/missingcsm
Follow Crawlspace: https://linktr.ee/crawlspacepodcast
Follow Glassbox Media: https://www.instagram.com/glassbox/
WEBSITE: https://darkvalleyshow.com/
MUSIC CREDITS
Through Alien Worlds: Dream Protocol
80s mystical stranger things: The Mountain
Moonlight: Dream Protocol
Piss Drunk: Future Seer
Badly: Serge Quadrado
Desolate world: DSTechnician
Tense detective looped drone: Daddy’s Music
Mystery Song: Future Seer
Muddy Wheels: Dream Protocol
Valley of Hope: Alan Frijns
Cinematic atmosphere score1-no melody: Music Town
Into the Icy Blue: Dream Protocol
Sad Song: Future Seer
You’re No Good But I Love You: Pixabay
Arpeggiator end credits: Pixabay
Inside Serial Killer: Gioele Fazzeri
Deep Retro Pop: Orchestraman
SFX:
Play Vermont: Narrated by Lowell Thomas
CASE TIPS OR INFORMATION:
New Hampshire State Police- Cold Case Unit at: 603.271.2663
Vermont State Police- Major Crimes Unit: 802.244.8781
Or, write to us at: [email protected]
Learn more about your ad choices. Visit megaphone.fm/adchoices
47 min - 7 - Update From Laura Riste
In this episode Crawlspace Media's Tim Pilleri, Lance Reenstierna and Jennifer Amell speak with Laura Riste about the disappearance of Trenny Gibson from the Great Smoky Mountains National Park on October 8, 1976.
If you have any information please call the Tennessee Bureau of Investigation at 615-744-4000.
Check out our Missing subscription service where we have a bonus show and ad-free episodes! https://missing.supportingcast.fm/
Follow Laura's FB page for Trenny: https://www.facebook.com/searching.for.trenny
Sources:
https://www.canadiangurl77.com/
http://charleyproject.org/case/trenny-lynn-gibson
Follow Missing:
TikTok: https://www.tiktok.com/@missingcsm
YouTube: https://www.youtube.com/missingcsm
IG: https://www.instagram.com/MissingCSM/
Twitter: https://twitter.com/MissingCSM
FB: https://www.facebook.com/MissingCSM
Check out our entire network at http://crawlspace-media.com/
Learn more about your ad choices. Visit megaphone.fm/adchoices
1 hr 18 min
About Missing Trenny Gibson
From the publisher's feed
Trenny Lynn Gibson was last seen at approximately 3 pm on October 8, 1976, in Great Smoky Mountains National Park (GSMNP). She was wearing a blue blouse, a pastel blue striped sweater, blue jeans, and blue Adidas shoes. She had on a brown and orange plaid wool jacket, which she had borrowed from Robert Simpson. She has long brown hair, green eyes, is 5’3 and 115 pounds.
For more information, please visit Laura Riste's site devoted to Trenny at www.canadiangurl77.com and Laura's FB page for Trenny: https://www.facebook.com/searching.for.trenny.
If you have any information regarding the whereabouts of Trenny Lynn Gibson, please contact the Tennessee Bureau of Investigation at 615-744-4000.
These episodes originally aired as part of the Missing podcast: https://linktr.ee/MissingCSM.
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