His cards almost always had him listed as "INF-OF", but his primary positions were left field, 2nd base, and shortstop. He also played some at the other outfield and corner infield spots, and even caught 2/3 of an inning in 1970.
Stewart was signed by the Cubs in June 1961 and made his major-league debut in September 1963. He played all of 1964 and 1965 with the Cubs, but split the 1966 season between the Cubs and their AAA team. His best season was 1964, when he played in 132 games and collected 33 RBI.
He was purchased by the cross-town White Sox in May 1967, but played most of that season with their triple-A team in Indianapolis. He appeared in 24 games with the Sox from mid-June to mid-July, almost always as a pinch-hitter or pinch-runner.
Jimmy was in the minors for all of 1968, then was selected by the Reds in the Rule 5 draft after the season. Stewart was with Cincinnati for all of 1969-71, with most of his playing time coming in 1969, when he made 41 starts at various positions. He started less than 10 games the other 2 years.
After the 1971 season, he headed to the Astros, along with Lee May and Tommy Helms for Joe Morgan, Denis Menke, Jack Billingham, Cesar Geronimo, and Ed Armbrister. Stewart spent the last 2 years of his career as a reserve infielder for the Astros, making only 11 starts in '72 and 6 in '73.
After his playing career he worked for the Reds from 1980-91 as a minor-league manager and then a scout. He also scouted for the Phillies from 1992-2006.
Stewart passed away in 2012 at age 73.