 McCormick was great friends with Mike "King" Kelly and was also very well liked by Cap Anson, two of the great personalities of early baseball.Anson was McCormick's captain-manager in 1885 and 1886, when Chicago won its last 19th-century pennants.In Paterson, New Jersey starting in 1885, McCormick co-owned a bar with a fellow former local player, Dave Treado.