Geronimo (1829-1909) was an Apache chief in New Mexico.
Rothaus, J.R. Geronimo, 1987 t.p. (Geronimo; Apache warrior, 1829-1909) p. 8 (named Goyakla at birth) p. 19 (called Geronimo by Mexicans and eventually became known by that name)
Encyc. Brit., c1990 (Geronimo; Spanish form of the English Jerome; nickname given by the Mexicans to Goyathlay; b. June 1829; d. Feb. 17, 1908; Bedonkohe Apache leader of the Chiricahua Apache)
Encyc. Amer., c1990 (Geronimo; b. 1829?; d. Feb. 17, 1909; Goyathlay or Goyakla in Apache)
Wikipedia, via WWW, Mar. 14, 2012 (b. about June 16, 1829 near the Gila River, Bedonkoheland, now in New Mexico; d. Feb. 17, 1909 at Fort Sill, Oklahoma; fought against Mexico and the United States for their expansion into Apache tribal lands)
Cantley, Janet. Beyond Geronimo, c2012 p. 37 (Geronimo; Goyahkla; One Who Yawns)
Harper's weekly, Apr. 10, 1886 p. 228 (Geronimo; Hieronymo)