Jack Kearns

Jack "Doc" Kearns (born John Patrick Leo McKernan; August 17, 1882 – July 7, 1963) was an American boxer and boxing manager.

His father was the son of Irish immigrants Philip and Amelia "Ann" McKernan and is noted as being "among the early pioneers in the Northwestern Territories of Montana, Idaho and Washington.

"[4] He is most remembered for achieving the first "million dollar gate" in boxing when the Jack Dempsey vs. Georges Carpentier bout generated a record $1,789,238 in ticket sales,[5] and for managing Jack Dempsey, who became World Heavyweight Champion from 1919 to 1926 and gave him the nickname "The Doc".

"[6] Kearns managed six world champions: Jack Dempsey, Mickey Walker, Jackie Fields, Benny Leonard, Joey Maxim, and Archie Moore.

[9][10] The Million Dollar Gate, Kearns' memoir as told to sportswriter Oscar Fraley, was published posthumously in 1966.