Through a lot of luck I now have all but 2 of the A series presses. Thank you IllinoisCoyoteHunter for your help! I am still missing the 1948-1951 Pre-A series press and the later version A2 that was made of cast iron and had no bushing. I believe I have the hardest or near impossible presses found though.
Shown in this picture from left to right is the welded pre-A, 1951-1956 Pre-A, A, 2A, Cast Steel A2, A3, A4 (Technically much later and not really an A series), and B.