Opha May Johnson (née Jacob, May 4, 1878 – August 11, 1955)[1] was the first woman known to have enlisted in the United States Marine Corps.

[7] Johnson, due to being first in line that day,[10] was the first of over 300 women to enlist in the Marine Corps Reserve during World War I.

[12] On July 11, 1919, the American Legion granted a charter to the first post of women's Marine Corps reservists.

[2] After her brief military career, she became a clerk in the War Department,[15] and worked for the Marine Corps as a civil servant until retiring in 1943.

[17] In late 2017 the Women Marines Association began raising funds to place a marker at her burial site.

[1] In late 2017 the Women Marines Association began raising funds to place a marker at Johnson’s burial site.