Architect BRIAN POWERS has researched two long-razed fields, Chicago's Comiskey Park and Cleveland's League Park, and designed digital experiences for modern fans. QUINCY TROUPE discusses his late father, a catcher who also managed the League Park-era Cleveland Buckeyes to the Negro Leagues World Series title in 1945. Ex-Tigers o.f. IKE BLESSITT speaks of playing ball as a child at Detroit's Hamtramck Stadium; Powers's company is now renovating that field. The past's role in our contemporary lives is the sweet theme of our chat.