Pack Mules, 1950 Yearbook: entire issue; 1954 No. 6: 47; 1957 No. 10: 25 photo (packing pipes); 1963: front ad section photo (June, 1933); 1977: 120 photo (State Line Ranch); 1979: ad section photo (and bell mare); 1981: 137; 2002: 131; 2011: 130 photo
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