Daily AncestorSgt.
Sgt. (older Sergt.) is short for sergeant, a noncommissioned officer who kept order among the enlisted men of a company.
Sgt. is the usual abbreviation of sergeant in muster rolls, pension files, service records and gravestones.
A company usually had a first sergeant and several other sergeants. A man promoted from private to sergeant will appear under both ranks in different documents, so search for both.
As seen in a recordName line in a regimental roster
Sergt. Jno. Ware, Co. A, 54th Regt.
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Daily Ancestor. "Sgt.." Dictionary of Old Record Words. https://dailyancestor.com/dictionary/abbreviations/sgt. Last checked 2026-10-01.