The 123rd New York Infantry was organized at Salem , New York .
The 123rd New York Infantry was mustered in for three years service on September 4 , 1862 under the command of Colonel Archibald Livingston McDougall .
The 123rd New York Infantry was organized at Salem , New York and mustered in for three years service on September 4 , 1862 under the command of Colonel Archibald Livingston McDougall .