DD214 will be required for membership This can be obtained by contacting
National Archives and Records Administration
Telephone: 1-866-272-6272
https://www.archives.gov/veterans/military-service-records
There are 3 organizations with the American Legion:
If you have served at least one day of active military duty since December 7, 1941 and were honorably discharged or you are still serving active military duty honorably, you are eligible for membership with The American Legion.
Membership in The American Legion Auxiliary shall be limited to the:
(1) grandmothers, mothers, sisters, spouses, and direct and adopted female descendants of members of The American Legion; and
(2) grandmothers, mothers, sisters, spouses, and direct and adopted female descendants of all men and women who served in either of the following periods: April 6, 1917, to November 11, 1918 and any time after December 7, 1941 who, being a citizen of the United States at the time of their entry therein served on active duty in the Armed Forces of any of the governments associated with the United States during either eligibility periods and died in the line of duty or after honorable discharge;
(3) grandmothers, mothers, sisters, spouses, and direct and adopted female descendants of all men and women who were in the Armed Forces of the United States during either of the following periods: April 6, 1917, to November 11, 1918; and any time after December 7, 1941 who served on active duty in the Armed Forces of the United States during either eligibility periods and died in the line of duty or after honorable discharge; and
(4) to those women who of their own right are eligible for membership in The American Legion.*
* A woman who is eligible for American Legion membership is eligible to join the American Legion Auxiliary regardless of whether or not she is a member of The American Legion. However, eligibility of her female relatives (sister, mother, direct descendants) and/or spouse depends upon her membership in The American Legion.
All male descendants adopted sons, and stepsons of members of The American Legion, and such male descendants of veterans who died in service during the period of April 6, 1917, through November 11, 1918, or any time from December 7, 1941, to date, who served honorably, as set forth in Article IV, Section 1, of the National Constitution of The American Legion, or who died subsequent to their honorable discharge from such service, shall be eligible for membership in the Sons of The American Legion.