[rhettyeakley]

For the 1920's the E121 Series of 120 (at least 20X easier to put together than the Series of 80) or the 1921 Exhibit Series (some approach this set as a series from 1921-24 together) are both great options. I'm not the biggest fan of the ornate borders but if you like them then the E120 or Neilson's cards can be an option. If looking for a smaller set that still has a ton of HOFers relative to its size the E253 Oxford Confectionery set is a pretty cool/different set.

For the 1940's I would probably go with 1941 Play Ball but that is a small set with few HOFers, but if you already have later sets you might consider the 1949 Bowmn set--tons of interesting cards in there. The 1940 Play Ball set also has tons of HOFers but it is a bit boring to me.

-Rhett