Joseph Daniel Keenan (November 5, 1896 – July 22, 1984) was an American labor union leader.
Born in Chicago, Keenan completed an apprenticeship as an electrician and joined the International Brotherhood of Electrical Workers (IBEW).
In the role, he worked with Jack Kroll of the Congress of Industrial Organizations to run a co-ordinated campaign for Harry S. Truman's re-election.
[2] In 1951, Keenan was elected as secretary-treasurer of the Building and Construction Trade Department of the AFL.
[2] Keenan traveled widely to campaign for John F. Kennedy in the 1960 United States presidential election.