Listed at 6 ft 2 in (1.88 m), 198 lb (90 kg), Donovan was a switch-hitter and threw left-handed.

Over two seasons, Donovan posted a 4–6 record with 23 strikeouts and a 3.20 ERA in 38 appearances, including 10 starts, two complete games, and 104 innings pitched.

From 1943 to 1945, Donovan served in the military during World War II.

[1] Donovan died in his homeland of Maywood, Illinois, at the age of 81.

This biographical article relating to an American baseball pitcher born in the 1910s is a stub.