"Note: apparently, the University of California Bancroft Library does not have a first edition"

I am pretty certain that they do - as much as anyone does. I believe that all copies are "Fourth Edition", as is mine. I have neither seen nor heard of a copy that wasn't.

I also have two copies of "Put's Golden Songster". Both are also "Fourth Edition".

The Golden Songster contains "Sweet Betsy from Pike". I am fairly convinced that this is a romanticized account of John Stone's brother Isaac and sister-in-law Elizabeth's emigration from Pike Co. Missouri.