Title: History of Pennsylvania Volunteers volume 3
Author: Samuel P. Bates
Publisher:B. Singerly, Harrisburg
Date Published: 1870
Keywords: Joshua Chamberlain, Lawrence Chamberlain, Joshua Lawrence Chamberlain, Petersburg, charge, wounded, wound, shot, surrender
Other places to view online:
91st Pennsylvania Volunteers
Not much for Chamberlain historians in this account, they do however verify that they received the formal surrender. Page 192 mentions actions at Petersburg.