Other football leagues in 1939:    
NFL

APFL 1939 Leaders
Passing Yards

APFL 1939 Leaders
Passing TD

APFL 1939 Leaders
Rushing Yards

APFL 1939 Leaders
Rushing TD

APFL 1939 Leaders
Receiving Yards

APFL 1939 Leaders
Receiving TD

APFL 1939 Leaders
Sacks

APFL 1939 Leaders
Interceptions

APFL 1939 Leaders
Field Goal %

APFL 1939 Leaders
Yards per Punt

APFL 1939 Leaders
Kickoff Return Yards

APFL 1939 Leaders
Punt Return Yards