potato3732842 parent
They gave the MoH out like candy in the 1860s during which time units were sourced from a common location. That inject a A LOT of noise into the statistics.
Unfortunately I do not have the source to back it up, but I recall a Jocko or Jocko-adjacent podcast discussing changes in medals of valor at or just after WWII, shifting away from “charged a machine gun” acts of valor to “saved his team’s life” style events, not just for the MOH but for all prestigious medals.