I suspect he is the same person as George C Rubican.
He was born in Philadelphia, Pennsylvania (4). He was 40, or perhaps 27, years old when he was enlisted (2 [27], 4 [40]).
He was a carpenter when he was enlisted (4).
He was 5 feet 8 inches tall, and had a light complexion, gray eyes, and gray hair (4).
He was enlisted and mustered into service on 2 November 1861 (1, 2, 4). He was enlisted for three years, at Philadelphia, Pennsylvania, by Lieutenant Murphy (4). He was mustered into service as a private, at Philadelphia, Pennsylvania (2). He served as a private in company F (1).
He was discharged at Washington DC on 12 April 1862 on surgeon's certificate of disability (1, 2, 3, 4).
1 Bates, Samuel Penniman. History of Pennsylvania volunteers, 1861-5. Harrisburg: B. Singerly, state printer, 1869-71. 5 volumes. 'Ninety-first regiment', volume 3, pages 186-233. (In the roster) (George W Rubicam)
2 Civil War Veterans' Card File, available at the Pennsylvania State Archives, searched 6 January 2005 (Geo. W Rubicam)
3 company F, register of men discharged (Geo W Rubicam)
4 company F, descriptive roll, #71 (George W Rubicam)
[I did not find an entry for him in the index on <www.ancestry.com> to the 1890 veterans' census, BUT see George C Rubicam for an 1890 veterans' census entry that might be this George Rubicam (searched May 2006)]
[I did not find an entry for him in the index on <www.ancestry.com> to the pension index by name, BUT see George C Rubicam for a pension index by name entry that might be this George Rubicam (searched May 2006)]