Mumphrey wouldn’t get his actual Topps rookie card until 1977, but here is a 1975 edition since he made his MLB debut with five appearances for the St. Louis Cardinals during the 1974 season.
Over those five games he went 0-2 at the plate as a September call-up at the age of 21, followed by a 1975 season that saw him spend a majority of it in the Minors, though he did get into 11 games for St. Louis, going 6-16 at the plate for a nice .375 clip.
In 1976 he’d finally get substantial playing time, hitting .258 over 112 games with 22 stolen bases, a common theme throughout the rest of his career.
In 1980 he’d have arguably his best year, playing with the San Diego padres and hitting .298 with a career-high 168 hits and 52 stolen bases.
By the time he retired after the 1988 season he finished with a very nice .289 career average, with 1442 hits in 4993 at-bats over 1585 games, stealing 174 bases and scoring 660 runs, with one All-Star nod, that in 1984 while with the Houston Astros when he drove in a career-high 83 runs.
I was a fan of his while he played for the New York Yankees between 1981 and the first past of 1983, as he hit over .300 while giving the Yanks a bit of speed on the base paths with some pop every now and then.
