James Edward Mallon

He had been in the 'wholesale commission' (brokerage) business in New York from about 1852, and had a seat on the Corn Exchange. He was "about five feet seven inches high, and of remarkably sinewy frame". He had been a member of the 7th New York Regiment for some years before the War, and served with them as a Private in 30-days service in April and May 1861, in Washington. He then joined the 40th New York ('Mozart') Regiment and was commissioned 2nd Lieutenant, Company K on 6 August 1861. He was promoted to 1st Lieutenant on 15 September, and made Adjutant of the Regiment in December. He transferred to Company A in April 1862.

He transferred to and was commissioned Major in the 42nd New York Infantry on 2 August 1862.

He commanded the 42nd at Antietam as the senior officer present after Lieutenant Colonel Bomford was wounded.

He was promoted to Colonel of the Regiment on 17 March 1863 and led them at Gettysburg. He was acting in command of the Third Brigade, Webb's 2nd Division, 2nd Army Corps at Bristoe Station, VA, where he was killed in action on 14 October 1863.

Prewar and personal details from his obituary in the New York Times of 12 October 1863. Military facts from Phisterer.1 His gravesite is on Findagrave. The photograph here is from a set of four from the US National Archives via flickr. Thanks to flickr user expertinfantry for the pointer.

09/12/1836; Brooklyn, NY

10/14/1863; Bristoe Station, VA; burial in Holy Cross Cemetery, Brooklyn, NY