After he retired they continued their friendships with one another and with him even though most let their licenses expire and are not active hams. Jack retired from teaching in 1975. After he retired, Los Angeles Unified School District dismantled the electric shop program and threw everything into a dumpster as Jack recalled to Terry Reiter, WB6PFD. In 1987, Jack's students took up a collection and bought Jack a new HF transceiver as Bob Faifield, WA6EOB recalls. His students continued having reunions in 2000 and 2003 with him until he sk'd on August 20, 2005. He died of a staph infection after he had a minor procedure.
Ron Marks made a (VHS format) 11 minute video of Jack's career which Jack narrated. It was called "Friends, Faculty and Students."
While Hami does have a building named Brown Hall, the laboratory building, which a Wiki entry claims to be named after Jack, Hami's Alumni Association says otherwise; that is it named after Walker Brown, a former Principal. Richard Sommers, W6NSV recalls he and his friends were caught by Principal Brown cutting school to go to Henry Radio to buy some parts for their club rig. The Principal told them to ask him next time and he would authorize them to go.
At the 2002 Reunion at Larry Weide's house in Denver, CO. Amongst other things, they resurrected the Jack Brown signature forging contest.