found: NUCMC data from Augustana College, Center for Western Studies for Harrington, J.L. Papers, 1944-1972(Cattle Kate)
found: Williams, B. Legendary women of West, 1978(Ella Watson (Cattle Kate); b. Ella Watson, Kansas; changed name to Kate Maxwell, 1890; known as Cattle Kate; her lynching in 1889 in Wyo. as cattle rustler one of catalysts of war between Wyoming Stock Growers Association and independent farmers (Johnson County war))
found: Smith, H.H. War on Powder R., 1966:p. 121, etc. (Watson, Ella; d. 1889 at age 28; popularly known as Cattle Kate)