Since which season has the team, for which Jonas Siegenthaler plays, played in the American Hockey League?
Jonas Siegenthaler:  He is currently playing with the Hershey Bears of the American Hockey League (AHL) as a prospect of the Washington Capitals of the National Hockey League (NHL). Hershey Bears:  The current Bears club has played in the American Hockey League since the 1938-39 season making it the longest continuously operating member club of the league still playing in its original city.
1938-39