In May 1861, Shaw joined the 2nd Massachusetts Infantry as a second lieutenant, later taking part in the battles of Winchester, Cedar Mountain, and Antietam while with the 2nd Massachusetts Infantry.
Shaw joined the 2nd Massachusetts Infantry as a second lieutenant, later taking part in the battles of Winchester with the 2nd Massachusetts Infantry. This was in May 1861. Shaw joined the 2nd Massachusetts Infantry as a second lieutenant, later taking part in the battles of Cedar Mountain with the 2nd Massachusetts Infantry. This was in May 1861. Shaw joined the 2nd Massachusetts Infantry as a second lieutenant, later taking part in the battles of Antietam while with the 2nd Massachusetts Infantry. This was in May 1861.