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| Officer | Warrant Officer | Enlisted Man |
Officers, warrant officers and enlisted men had their own cap insignia worn on service caps. The basic style used by officers was introduced in 1902, warrant officers in 1921 and enlisted men in 1917 (with several modifications since). These insignia were also worn by all female personnel beginning in 1944.
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| Aviation Cadet | Aviation Cadet Insignia |
The aviation cadet insignia was introduced in 1928 and worn until 1947. It is similar to the Air Force branch insignia but the prop is two inches high.
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| Officer's Insignia | Enlisted Woman's Insignia | Enlisted Woman's Hat |
In 1942 the WAAC or Women's Auxiliary Army Corps was established to allow a uniformed service for women. The original hat insignia produced an eagle that earned the nickname "the buzzard." It was worn in both an officer and enlisted version until 1944 when it was dropped in favor of the insignia being worn at time time by male personnel. In 1943 the WAAC became a full component of the United States Army and was renamed Women's Army Corps or WAC.
Other cap insignia were worn by members of the Army Transport Service who wore a naval style uniform, although technically members of the United States Army. Images of Army Transport Service Insignia can be seen on this page.
