Jane Toppan was an American serial killer who earned the nickname "Jolly Jane." She confessed to murdering 31 people.
Source Materials:
Serial killer researched by Emily Allen Alana Averill Emmeline Cook, Department of Psychology Radford University http://maamodt.asp.radford.edu/Psyc%20405/serial%20killers/Toppan,%20Jane%20-%202005.pdf
A.W. Naves, "Jolly Jane"- The story of Serial Killer Jane Toppan
https://awnaves.medium.com/jolly-jane-the-story-of-serial-killer-jane-toppan-a582737941c7
The South End Historical Society Newsletter, Vol. 34. No. 4
https://www.southendhistoricalsociety.org/wp-content/uploads/2012/08/December-2006-12-14.pdf
Ciaran Conliffe, Jane Toppan, Nurse and Serial Killer https://headstuff.org/culture/history/terrible-people-from-history/jane-toppan-nurse-and-serial-killer/
Jolly Jane Toppan, the Killer Nurse Obsessed with Deathhttps://www.newenglandhistoricalsociety.com/jolly-jane-toppan-killer-nurse-obsessed-death/