Returns from U.S. Military Posts, 1800–1916,NARA, Washington, D.C.; Microfilm Serial: M617; Microfilm Roll: 737 (accessible viaAncestry.com; Search: "Antonio De la Mora;" "20th Infantry")
"Antonio de la Mora, Chief Musician 20th Infantry, Unique Figure," Salt Lake Telegram, November 4, 1911, p. 16 (accessible viaGenealogyBank.com, subscription required)
"Falleció En Kansas City El Prof. Antonio de la Mora" (obituary), La Prensa, May 22, 1926, p. 10 (accessible viaGenealogyBank.com, subscription required)
"Musician is Thwarted in Attempt to End His Life – Antonio Leaps Through Window of States Building," New Orleans States, Vol. 39, No. 40, February 9, 1919, p. 1 (accessible viaGenealogyBank.com, subscription required)
"Father of De La Mora Here To Care for Son," New Orleans States, Vol. 39, No. 41, February 10, 1919, p. 4 (accessible viaGenealogyBank.com, subscription required)
"A Bullet Just a Bullet – Dr. Nicolas Jaime Does Not Believe He Was Sniper's Target," Kansas City Star, Vol. 46, No. 162, February 26, 1926, p. 1, col. 7 (top) (accessible viaGenealogyBank.com, subscription required)