Here's a link to the Musial Master set:
http://www.psacard.com/PSASetRegistr...on.aspx?c=1852
and here is one to the Reese basic set (no master set for him):
http://www.psacard.com/PSASetRegistr...on.aspx?c=1905
I would also encourage dialogue with Mike Mosier of Columbia City Collectables - he has probably forgotten more about "odd and rare" issues than most collectors will ever know. Get a copy of the Standard Catalog of baseball cards and peruse for sets that either appear in. Do a saved ebay search for both players names. Hope some of that helps.
-Howard