He had come up in the Cardinals system, spending 1950, 1951 and 1954 there (with time off for military service evidently) and headed back to the minors for his last pro season, 1956. He started in Omaha for the Cards and finished the season for Minneapolis for the Giants. His Baseball-Reference page does not list a trade for this move, but we have found that it was an add to a well-known trade featuring a Hall-of-Famer!
“The Omaha Cardinals sold infielder Bob Stephenson to
Minneapolis for an unannounced price. Stephenson played college ball at
Oklahoma. Cardinal General Manager Bill Bergesch said the Sunday sale was in
connection with the St. Louis- New York trade in the National League last week.
The parent Cardinals traded Jack Brandt, Red Schoendienst, Bill Sarni and Dick
Littlefield for Al Dark, Whitey Lockman, Ray Katt and Don Liddle.”
Jackie Brandt's Baseball-Reference page lists that deal as:
June 14, 1956: Traded by the St. Louis Cardinals with a player to be named later, Dick Littlefield, Bill Sarni and Red Schoendienst to the New York Giants for Al Dark, Ray Katt, Don Liddle and Whitey Lockman. The St. Louis Cardinals sent Gordon Jones (October 1, 1956) to the New York Giants to complete the trade.
Which we now know is incomplete. Perhaps a better rewrite:
June 14, 1956: Traded by the St. Louis Cardinals with players to be named later, Dick Littlefield, Bill Sarni and Red Schoendienst to the New York Giants for Al Dark, Ray Katt, Don Liddle and Whitey Lockman. The St. Louis Cardinals sent Bob Stephenson (June 17, 1956) and Gordon Jones (October 1, 1956) to the New York Giants to complete the trade.
Bob Stephenson photo glommed from Baseball-Reference.com