One player made his big league debut wearing a Twins uniform on August 4.
Don Williams (P) – August 4, 1963 – Acquired from Kansas City A’s in 1960. Debut was at Municipal Stadium in a Twins 6-2 defeat at the hands of the Kansas City A’s. Williams pitched 1.1 innings of relief allowing 2 hits and 3 walks but no runs.
I believe that Don Reid Williams is the only Twins player I do not have a picture of, if anyone out there does have any kind of picture of him, digital or hard copy, I would very much appreciate getting a copy.
To see other Major League Debuts as Minnesota Twins

He’s my Grandpa, can confirm the picture of him on Wikipedia is legit, Just checked with my dad to make sure it wasn’t a random person haha. 🙂
Allison, There are two Don Williams that played baseball. The one that is on WIKI is not the Don R. Williams that pitched for Minnesota in 1963.Sorry.
Baseball Reference has a picture of Don now on his personal stats sheet. . . . .Also do you have the reason Harmon Killebrew briefly played in the Chicago White Sox minor league system in 1958 with Indianapolis? I never understood that and Ruesse didn’t even know.