Yes those are all right.
The W519-2-2 is a different set. it has a blue card number
Here are some examples They are very rare and I dont know of anyone that has a complete set, I dont even know who 2 of the players are (see above).
Theyve only been in the SCD for a few years now... first couple years there was only 2 cards known/checklisted (Frisch, Morton) and slowly theyve added to the checklist.
the last SCD I have is 2009 and they dont have the #11 listed, and 3 of the cards listed a "b" variations I highly doubt exist, and they would match the W519-2-1 and W521 numbers
Here is the list of known W519-2-2
#11 Kid Gleason
#12 Joe Murphy (pictured as a catcher, ?no such player?)
#13 Frank Frisch
#14 Eddie Collins
#15 UNKNOWN (might be Cravath)
#16 Guy Morton
#17 Rube Marquard
#18 UNKNOWN (might be Cravath)
#19 Ernie Kreuger
#20 Babe Ruth