Something is odd....the 121st ny claims to have captured 4 flags. The 5th Maine says they captured 4 flags. The 6th Maine got the 8th La's flag. So that's 9 flags. Meade in the OR reported only 8. Maybe the "9th" was just the flag pole. What about the 4 gun battery? They must have had a flag.
By the way the 121st ny and 5th Maine are said to have captured 7 flags each during the war. I'm sure the majority were from this battle. Some from Dole's brigade at Spotsylvania 6 months later.