US Army WWII Ranks

Enlisted rank insignia 1920-1942

Arm RankAbbreviationRank
PrivatePvt.Private
Private First ClassPfc.Private First Class
CorporalCpl.Corporal
SergeantSgt.Sergeant
Staff SergeantS/Sgt.Staff Sergeant
Technical SergeantT/Sgt.Technical Sergeant
First Sergeant1st SgtFirst Sergeant
Master SergeantM/Sgt.Master Sergeant

Enlisted rank insignia 1942-1948

Arm RankAbbreviationRank
PrivatePvt.Private
Private First ClassPfc.Private First Class
Technician Fifth GradeT/5.Technician Fifth Grade
CorporalCpl.Corporal
Technician Fourth GradeT/4.Technician Fourth Grade
SergeantSgt.Sergeant
Technician Third GradT/3.Technician Third Grade
Staff SergeantS/Sgt.Staff Sergeant
Technical SergeantT/Sgt.Technical Sergeant
First Sergeant1st SgtFirst Sergeant
Master SergeantM/Sgt.Master Sergeant

A technician was generally not addressed as such, but rather as the equivalent line (NCO) rank in its pay grade (T/5 as Corporal; T/4 as Sergeant; T/3 as Sergeant or Staff Sergeant). Officially, a technician did not have the authority to give commands or issue orders but could under combat conditions be placed second in command of a squad by a Sergeant. Unofficially, most units treated them as though they were of the equivalent rank of the same pay grade.

Officer rank insignia

Collar RankAbbreviationRank
Second Lieutenant2LTSecond Lieutenant
Fisrt Lieutenan1LTFisrt Lieutenant
CaptainCap.Captain
MajorMaj.Major
Lieutenant ColonelLTCLieutenant Colonel
ColonelCol.Colonel

General rank insignia

Collar RankAbbreviationRank
Brigadier GeneralBg.Brigadier General
Major GeneralMg.Major General
Lieutenant GeneralLtg.Lieutenant General
GeneralGen.General
General of the ArmyGa.General of the Army