Title: History of the One Hundred and Fiftieth Regiment Pennsylvania Volunteers
Author: Thomas Chamberlin
Date Published: 1905
Keywords: Joshua Chamberlin, Lawrence Chamberlain, Joshua Lawrence Chamberlain, Petersburg, charge, wounded, wound, shot
Other places to view online:

1895 edition: archive.org
History of the 150th Regiment, Pennsylvania

Detail of image from OR atlas showing the positions of the Army of the Potomac July 28, 1864. Original can be viewed at: baylor.edu

Originally part of the 1st Corps they joined the 5th Corps on June 6, 1864. Though veterans of battles even before Chamberlain enlisted, these men soon learned to love him. As is evidenced by the quote from page 261, "Under the superb leadership of Colonel Chamberlain, who had won the confidence and affection of the brigade, they pressed on almost to the enemy's works; but at this critical point the colonel was dangerously wounded..."

After the war the regiment would invite Chamberlain to their reunions at Gettysburg. The Gettysburg Compiler September 15, 1896 announced that Chamberlain was expected to come to their reunion on the 24th and 25th of that month.

Their memory of Chamberlain is also thanks in part to the fact that a Colonel of this regiment, Thomas Chamberlin, shared his last name and would have contact with Chamberlain later in life through the Chamberlain Association of America.*
    Thomas, who is not to be confused with Chamberlain's brother, had left the regiment due to injury after the battle of Gettysburg.
    Because he was not with the regiment at Petersburg Thomas relies on other members of the regiment for an account. While the first account starting on page 260 appears to be accurate, aside from listing time of the charge as 4pm instead of 3pm, Thomas confuses the account somewhat by interjecting that Chamberlain was wounded in the second charge of that day. And while it is true that Chamberlain took part in a midday forward movement before his 3:00 charge, thus making it a "second charge" he was already wounded by the time of the 6:00 charge that the second account goes on to describe on page 262.
    The original 1895 publication did not have Sergeant Frey's account nor Thomas' comment about a second charge. What is interesting about this 1905 "Revised and Enlarged Edition" is the line about the 4pm attack, as they call it, that was removed from page 261. The line reads, "which was subseqently blown up by Burnside‚Äôs famous mine." This suggests that Thomas believed it was an error to suggest they were near the Crater at 4pm.
    The second account, Sergeant Frey's account, describes moving to the right at 6pm for a charge near the later site of the Crater. Most of Chamberlain's men were pinned down in front of Rives Salient and did not take part in the 6pm charge of the 2nd Brigade, but possibly some of the 150th who were separated or had retreated were then gathered up and put in again with Sweitzer's command. The fact that Sergeant Frey's account mentions the Crater and was not in the original edition indicates it was written some time after. Durring the 6pm charge Crawford's right flank would have been near the future site of the Crater, his left was on the Sussex aka Baxter Road and Sweitzer was to his left. The map above shows the positions of the army as of July 28th with the future site of the Crater labeled as "Mine."

To explore more closely sources describing Chamberlain's position see: Maps of Virginia

*Thomas Chamberlin, Chamberlain Association of America

To read the "History of the Pennsylvania Volunteers" that was referenced on page 262 follow the below link:
150th in "History of the Pennsylvania Volunteers"

Page 263 cites the newspaper article the New York World