Frank Smithwick Hogan (January 17, 1902 – April 2, 1974) was an American lawyer and politician from New York. Dubbed "Mr. Integrity" due to his perceived honesty and incorruptibility, he was New York County District Attorney for more than 30 years.Hogan was born in Waterbury, New Haven County, Connecticut. He studied at Columbia College, Columbia University as an undergraduate and subsequently graduated from Columbia Law School. Hogan was a member of Beta Theta Pi Fraternity at Columbia. Prior to his 1941 election, Hogan served as Administrative Assistant District Attorney under his predecessor, Thomas E. Dewey. During his time in the New York County District Attorney's Office, Hogan conducted many widely publicized investigations. Corruption and racketeering were high on his list. Concerning itself with both innocence and guilt, street crime and high-profile cases, the Hogan administration molded itself a national reputation based on resourcefulness, objectivity, and honesty. Wikipedia