Hi Don,
Thank you so much for all the information.  I don't believe that my mother had a specific type that she liked to collect, other than she liked things that were old.  She primarily had decks, but still had a vast "single" collection.  She would trade individual cards with friends when she was young, so most of those would probably be quite old. 
I would like to attend in Philadelphia, pandemic allowing, in October.   Hopefully, I will see you then.  Laura

Hi,
Here are a few pictures of some of the cards that I have been able to go through.  My mother had a number of games too: bridge sets, rook, Asian games, canasta, etc.  I did find foreign card decks, lots of promotional/advertising decks, airline and transportation, animals,  places and travel, mini decks and cards for children.  Most of the decks seem pretty old, a few are quite fragile.  I literally have hundreds of decks. 

 My mother liked going to flea markets and antique stores and adding to her collection.  She did have one deck of Navajo playing cards.  She was contacted by the University of Arizona who somehow found out she had them.   They wanted to study them, and she ended up donating them for a value of $1800.00!  They were quite the find.    Card collecting, and genealogy, were her hobbies when she retired 20+ years ago and now I have it, and am not sure what to do with it all.  They are fun to go through.  I plan on keeping some, and selling the rest.  It is a fun hobby, but space limitations prevail.  Laura