Branca De Neve is #29.
Atchim (Sneezy) #22.
Soneca (Sleepy) #23
Dengoso (Bashful) #25
These particular caps come from collector Brian Main, who says his set is not yet complete but that there are at least 72 in the series, based upon the highest number he has. A few other examples include Urtigao #21, who was popular in Brazil and found in Donald Duck comics; Barrica (Mr. Smee) #57 from Peter Pan; and Mickey #60.
Additional Mickey image via ldrbryan.
We're still missing four of the dwarfs in this collection. If anyone has pics they'd like to share, we'll be happy to add them and give you credit.