Steve -
I would think there are Ben Schmidt decoys in some east coast collections, and in the care of various decoy club members as well. I am not certain about decoy museums on the coast having any in their collections. Inquire and you should get replies.
Once you see and get your hands on one, you will not forget it.
The man that helped organize and headed the Pymatuning Waterfowl Festival (now Expo) in 1982, had a large collection of Ben Schmidt decoys. Prime examples, that were put on display at the the Waterfowl Refuge Museum (now Wildlife Museum). Being a DU volunteer I got to study them up close. His work influenced many Great Lakes, and big water layout decoy carvers and gunners.
Decoy Magazine did a very good article about Mr. Schmidt some years ago, he is on the cover. I have the issue, just have to dig it out. Also many past auction catalogs show much of his work.
What I enjoyed about the old Ohio Decoy Show at Westlake, was that there were decoys from all over North America. Every room had treasures you could get hands on, that now seem to be far out of reach. Thanks to that show I got to see and enjoy decoys from everywhere. Very inspiring and educational.