After the Schurz event in NY, a leader with a cavalry unit appears there.
The event is called Schurz.
The unit, Shurz (minis the c)
The leader, Schurze (plus an e)
I believe the correct name is Schurz.
When the first union army mobilizes, in Alexandria, the 4th unit in the 1st Division in called 3rd Artillery despite being a Line Infantry Regiment.
In the same army, in the 3rd Division, there are two 1st&4th Michigan, both Line Infantry.