1861 Civil War Official Army Register NAMED Eustis Engineers Corps General Union This is a nice copy of the Official Army Register from September 1861. Lightly handwritten on the front cover, inside cover page and also back cover is the name "EUSTIS". On the inside it appears to possibly say, H. I cannot guarantee this is the same person, but enough of it leads to me to believe this could be from Henry L. Eustis who was a civil engineer, college professor, and soldier who served as a General in the Union Army during the Civil War.
Please see photos for details and condition.