Cronin (June 13, 1898 – May 9, 1977) was a United States politician.Cronin was born in San Francisco in 1898 and worked in the city's Park and Recreation Department where as a youth he taught baseball to his cousin Joe Cronin of later Boston Red Sox fame.
He graduated from St.
Ignatius College, later the University of San Francisco, with a degree in law and started a partnership with controversial lawyer Vincent Hallinan.
During World War I he served in the United States Army.
He was later a member of the California legislature, but resigned from the California State Assembly on January 4, 1942.
From 1953 to 1977, he was a Judge of the California Superior Court, and served in San Francisco as Judge of the Juvenile Court under the Superior Court of California.
He was concurrently a member of the California Judicial Council.