[1] Fitzpatrick served variously as the President, Treasurer, and business agent for the Chicago local of the IJHU, being selected as a delegate to conventions of the union as well as its representative to the American Federation of Labor (AF of L).
[1] This connection was instrumental in Fitzpatrick's appointment as the organizer of the Chicago Federation of Labor, city affiliate of the AF of L, in 1902.
[1] In November 1919, Fitzpatrick ran for mayor of Chicago on the ticket of the Cook County Labor Party and received a substantial vote of 60,000 of the 580,000 ballots cast.
[2] Bolstered by the degree of support which the new organization received from voters, Fitzpatrick called a national convention of local Labor Party movements, which was held in Chicago on November 22, 1919.
[3] Fitzpatrick remained as President of the Chicago Federation of Labor until his death in 1946, with the exception of a single year, 1908, when Charles M. Dold served as head of the organization.