From collection Member List
![Acheson, Marcus C.](https://cdn1.historyit.com/iiif/2/6463855d68ae21.03410737/66436bca9ed957.39658842.png/full/400,/0/default.jpg)
58th Regiment, July- August Co. B. Pennsylvania militia during Gettysburg emergency, 1863 (Biographical and Historical Catalogue of Washington and Jefferson College, p. 420).
From collection Member List