"I went to Fort Sumner to try and find her grave but I couldnt find it"

The small village of Fort Sumner is located in De Baca County, New Mexico.

Billy the Kid (November 23, 1859 - July 14, 1881)
Public DomainBilly the Kid (November 23, 1859 - July 14, 1881) - Credit: Wikimedia Commons
Fort Sumner (c. 1861-65)
Public DomainFort Sumner (c. 1861-65) - Credit: Andrew J. Russell (Library of Congress)
Navajo under guard at Fort Sumner (c. 1864)
Public DomainNavajo under guard at Fort Sumner (c. 1864) - Credit: Wikimedia Commons

It was originally a military fort which had been charged with the internment of nearby Navajo and Mescalero Apache populations from 1863 to 1868. The fort was closed in 1868 and two years later the government sold the buildings to Lucien Maxwell, a prominent New Mexico landowner. Maxwell’s son later befriended Billy the Kid, and it was in his house that the legendary outlaw was killed by Pat Garrett.

Billy the Kid is buried in the old military ceremony in Fort Sumner, the same one where Billy goes looking for his sister’s grave.