He played briefly in Major League Baseball (MLB) for the Philadelphia Phillies in the early 1940s.

[2] Jumonville's career in Minor League Baseball spanned 1936 to 1943, during which he played in over 650 games (records of the era are incomplete).

[3] Jumonville was a September call-up for the Phillies in 1940,[4] appearing in 11 games primarily as a shortstop while recording an .088 batting average (3-for-34).

[8] In June 1941, the Phillies sent Jumonville and cash to the Cardinals organization in exchange for infielder Danny Murtaugh.

[5] Jumonville served in the United States Navy during World War II, from April 1944 through January 1946.