I did a little research online and found that these patterns were originally published by Ruby McKim in 1928 as Bird Life/Audobon Quilt Book. So now I know that the blocks were completed sometime after that.
QUESTION: In using these blocks for projects...the muslin seems a little thin...should I add a stabilizer and if so, which one(s) do you recommend? I'd like them to remain soft and pliable for any cozy projects. Thanks.