I'm about 99% sure those back-to-back pics are out of the 1952 Dell Annual Baseball Facts & Figures book w/ the Stan Musial cover.
I sold my 1950-51- & 52 issues about a yr ago and I recognized them immediately.
Here is a listing for the issue w/ your 1951 pic. Each issue had 8-12 B&W pics of the previous yrs Stars & Award Winners.
http://cgi.ebay.com/1952-Dell-Major-...d=p3286.c0.m14