Conversation so far:
what was Abner Doubleday's role in Gettysburg?
Doubleday's division was the second infantry division on the field to.
what side did he fight on?
the cavalry division of Brigadier General John Buford.
who were some of his comrades?
Army of the Potomac commander Maj.
Gen.
George G.
Meade.
what were some of his victories in the battle?
leading 9,500 men against ten Confederate brigades.
did he win the battle?
their line eventually broke.
did he kill anyone?
Seven of those brigades sustained casualties.
what was the end of the battle like for him?
the corps was essentially destroyed as a combat force for the rest of the battle.
did he receive any medals?
CANNOTANSWER.

Question: who was his commanding officer?
Self-contained rewrite: Who was Abner Doubleday's commanding officer?