He played college football for the Oklahoma Sooners.

He played for the New York Giants, Chicago Cardinals and "Card-Pitt", a team that was the result of a temporary merger between the Cardinals and the Pittsburgh Steelers.

The teams' merger was result of the manning shortages experienced league-wide due to World War II.

In 1946, Duggan jumped to the rival AAFC, where he played with the Los Angeles Dons in 1946 and the Buffalo Bills in 1947.

This biographical article relating to an American football offensive lineman born in the 1910s is a stub.