Thanks to the internet I've been able to track down who did these wonderful pieces. Most were done by Florence Thomas and later her successor Joe Liptak, whom I've mentioned before on this blog
Thomas produced her first reels for View-Master in 1946 --a series of Fairy Tales and Mother Goose rhymes that are still in circulation. According to one source, Thomas "developed special methods of close-up stereo photography and modeling which is now in common use by major motion picture studios" (John Waldsmith, Stereo Views, 1991).
A scene from "Robin Hood"
I found a pretty good tribute to Florence at the blog Mystery Hoard and you can find it here: http://frequential.blogspot.com/2008/04/unsung-geniuses-florence-thomas-of.html
Looking at the size of the candle flame and the scale of what appear to be real feathers in Captain Hooks hat, and the detail on Tinkerbell, it must have been a fairly large setup. It's pretty obvious now but I never gave it much thought as a kid.
It seems appropriate that these were clay figurines and done in Portland Oregon just like Will Vintons' Claymation.
UPDATE: A woman names Linda asked if there were other photos of her relative Florence Thomas. I was able to find these:
I just found your blog, “View-Master Artists” (dated Nov 19, 2012) this evening and want to kindly inform you that the last 5 “updated” photos you posted is NOT Florence Thomas. Instead, the artist is Martha Armstrong Hand. I personally knew her in the mid 1990’s until her passing in 2004. For your reference, here are a couple of links in tribute to Martha.
Thank you in advance for making the correction.
Lori, August 23, 2020