Originally credited "Al Bryant?", but this is Mort Leav, who is credited on pencils on this feature by Jerry Bails' Who's Who. He is spotted by his lively faces and figures, and also by his large hands and a special crouching way of running, with thighs lifted high.
Some heads in 3/4 backview with streched neck and the jawbone going back behind the ear point to Tirman, as on page 4 and 5, but the short figures and some heads in sideview could be Quackenbush. Also the fist fight on page 4 points to him. He is credited on this feature by Jerry Bails' Who's Who for 1944-46.