[11] During the early 1960s, the historic community of Fazendeville was demolished in order to expand the battlefield in preparation for the commemoration of the 150th anniversary of the Battle of New Orleans, which took place in 1965.

[13][14][15][16][17] Another major restoration took place from March 7 to April 1, 2016 when volunteers from HOPE Crew (Hands-on Preservation Experience) participated, in partnership with the National Trust for Historic Preservation, the National Park Service and the National Center of Preservation Technology and Training, in the cleaning and re-setting of 671 headstones in the oldest part of the national cemetery, which is "the final resting place for US Colored Troops, servicemen who consisted of 'free men of color' formerly known as the Louisiana Native Guard; free, mixed-race 'creoles' who the Confederacy barred from joining their forces, and refugees, or 'contraband' from nearby plantations who served the Union Army in exchange for food, clothing and housing for their families," according to a spokesperson for the trust.

The headstones that were restored had been misaligned or damaged by air pollution and mold growth, and were cleaned with products donated by D/2 Biological Solution, Inc.

[19] Initially well maintained, the cemetery fell into disrepair during the 1870s as various Freedmen's Bureau services were curtailed and then eliminated due to budget cuts and "the politics of race and Reconstruction.

Frustrated by the federal government's lack of progress, members of the Louisiana Society of the United States Daughters of 1776 and 1812 began lobbying elected officials for help during the 1890s, finally securing the support necessary from the administration of President Theodore Roosevelt for the monument's erection.

[25] In February 1874, members of the Grand Army of the Republic's Joseph Mower Post in New Orleans secured permission to erect a G.A.R.

monument was inscribed with the Latin phrase, "Dum Tacent Clamant" ("While They Are Silent, They Cry Aloud"), and has served as "a focal point" for Memorial Day ceremonies since that time.

[4] The Chalmette site was later incorporated into the multi-site Jean Lafitte National Historical Park and Preserve, which was authorized on November 10, 1978.