Re: Unit?
Alan,
Albartus is on the 1880 census in Smithville, Monroe County, shown as A. Armstrong with wife Trissie and children. George indicated that Adolphus was in Company F, while A. Armstrong was in Company H - the company designation on Albartus tombstone. Even though the unit designation is incorrect, I believe that it is probable that the A. Armstrong in Company H is Albartus.