O'Hara, Mary. Thunderhead, a novel. - Philadelphia, Lippincott [1943] - 320 p. 21 cm. "A Story Press book." "First edition." LCCN: 43009419 Subjects--Topical Terms: Human-animal relationships--Fiction.Horses--Fiction. Subjects--Geographic Terms: Wyoming--Fiction. LC Class. No.: PZ3.O36793 PS3529.H34 / Th