Yack Merrill a prisoner, alretty!" "The Border Boys Across the Frontier" by Fremont B. Deering

" Yack, he take up the trail of a coyote," Swan explained, " but it's got the four legs, and Yack, he don't understand me when I don't follow. "Sawtooth Ranch" by B. M. Bower

" Yack is on already," Swan pointed out. "Sawtooth Ranch" by B. M. Bower

" And I follow Yack. "Sawtooth Ranch" by B. M. Bower