He and his wife Betty had six children, and Glen went on to have a successful career in insurance and real estate.
Flanagan also ran for the city council of St Paul and owned a bar and two restaurants.
In a career that lasted from 1946 until 1960, Glen Flanagan compiled a professional record of 83 wins (34 by knockout) and 23 losses, with 13 draws.
[1] Flanagan faced a number of notable opponents, including Miguel Acevedo, Jackie Graves, Charley Riley, Pat Iacobucci (three consecutive bouts), Ray Famechon (at Madison Square Garden), Jackie Blair, Gene Smith, Redtop Davis, Corky Gonzalez, Tommy Collins, Diego Sosa, Armand Savoie, Lulu Perez, Duilio Loi, and Eddie Chavez.
Flanagan won the Minnesota featherweight, lightweight, and welterweight titles and fought for the world championship in the featherweight division against Tommy Collins in the Boston Garden in 1952, losing a close 15 round decision.