Fifteen Massachusetts infantry regiments, one cavary regiment, three batteries of artillery and two companies of sharpshooters fought at the Battle of Antietam. All are honored on the State of Massachusetts monument, and three of the infantry regiments have individual monuments as well.
| State of Massachusetts | |||
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Irish Brigade (29th Massachusetts and 63rd, 69th and 88th New York) |
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15th Massachusetts Infantry Regiment |
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21st Massachusetts Infantry Regiment | ![]() |
35th Massachusetts Infantry Regiment |




