I’m guessing this constitutes Buster Brown’s last appearance, in strip form at least, in the Sunday comics. This 1934 ad campaign for Buster Brown Shoes doesn’t seem to have gone on very long; at least this is the only sample I can recollect seeing.
This Buster strip is penned by the great cartoonist of the Betty Sunday page, C.A. Voight. The work isn’t signed but Voight’s style is distinctive enough to make it an easy call.