Carl Dennis Campbell Sr.[1] (July 28, 1935 – November 12, 1997) was an American professional wrestler better known by his ring name Luke "Big Boy" Brown.

[1] Wrestler Frankie Townsend gave him the name "Man Mountain Campbell", which Brown used up until 1961.

They defeated Ivan and Karol Kalmikoff on June 8, 1961 in a tournament to win this title.

[1] Brown, as Man Mountain Campbell, had his first main event match on April 12, 1960 against Hans Schmidt in Minneapolis, Minnesota.

[1] He was in poor health during his last years of life, including kidney failure that required him to undergo dialysis.