- Card series: 1888 Champion New York Giants
- City: New York
- Team: Giants
- League: National League
Elmer Ellsworth Foster (1861-1946) was an outfielder with the New York Metropolitans, New York Giants and Chicago Colts over a six year span beginning in 1886. The very rare baseballer who threw left and batted right, Foster achieved a career batting average of .187.
- One of the first five major leaguers born in Minnesota
- Played at Haverhill with future Hall of Famers Wilbert Robinson and Tommy McCarthy
- Noted for his speed on the base paths, Foster always had an explanation if caught stealing: “Why, I wasn’t a bit tired. Why should I have stopped running?”