On a ranch in the 1920's - probably fairly plain leather "cowboy" boots with leather soles. When they got wet, your feet were wet until they dried out. (Nobody said being a cowboy was easy.)

By the 1920's they were probably "store bought" or mail order. Today we usually treat boots as disposable items. i.e you wear them out and throw them away. In years past most small towns had a shoe shop where you could get shoes or boots repaired at a resonable price. When the leather soles wore out, you would take them in and get them resoled for much less than buying a new pair.

Search for "CIVIL WAR SUTLERS" and you will find sites that sell reproductions of the Civil War cavalry boot. These would have been typical for the mid to late 1800's. The style that is more typical of the "modern" cowboy boot (high heals, pointed toes) developed in the late 1800's to early 1900's.