Born in Philadelphia, Narum graduated from high school in Clearwater, Florida. He signed with Baltimore at age 17 in 1958 and debuted with the Orioles early in the 1963 season, finishing with no decisions in nine innings of work. The next year, he was sent to the Senators in the same trade that brought Lou Piniella to Baltimore. On May 3, 1963, Narum became the first-ever Oriole player to hit a home run in his first Major League at-bat, connecting off Don Mossi of the Detroit Tigers in an 8–5 Baltimore triumph.[1]
Narum had a career batting average of .059 (7-for-118), though three of Narum's seven lifetime hits were home runs.