Recently I was sent a box of music from New Zealand. While the bulk of the box was stuff I already had (including several copies of the Dallas tutor) there was this series of solos by Wm. Barrett that were self published in 1926.
There are 8 solos in total as listed on the cover. Cleary they were published as a nostalgic throwback based on the short introduction he wrote inside.
These are not too difficult and some are pretty good. I like the "Old Gray Gobbler Turkey Trot".
All are now in public domain so enjoy and do what you want with it.
https://archive.org/details/@joel_hooks?query=barrett