Thanx for posting David.
Didn't know that Jackie's brother was in the '36 Olympics.
I have a color version of the album but Mack was dissed with respect to pics.
Here's a color card of Jesse finishing the 200m race - Mack is no where in sight even tho he came in 2nd - getting the Silver.
Based on what I just read, Mack qualified by beating out the '32 Olympic gold medalist to make the team.