Use "first sergeant" in a sentence

1. 1st lieut Adjt: first lieutenant adjutant; 1st lieut asst surg: first lieutenant assistant surgeon; 1st lieut bn Adjt: first lieutenant battalion adjutant; 1st lieut regtl qtr: first lieutenant regimental quartermaster; 1st lt: first lieutenant; 1st mus: first musician; 1st officer: first officer; 1st serg: first sergeant; 1st sgt: first