I wonder if there was 2 possible Manuel De Ben.
The 1860 Census shows one age 33 years (so born 1827 Spain) - unfortunately no image for you to see on this link.
http://www.rootschat.com/links/0b27/ This is what it says:- 1860 Algiers, Orleans, Louisiana
Manuel Deben 33 Born about 1827 Spain. grocer. Value of real - estate $500 Value of personal estate $500
Joseph Abares 40 Born Spain Clerk
Ramon Cuberos 30 Born Spain. Labourer
Henry Rainer 48 Born Hanover. Labourer
John Stebbins 28 Born Bavaria. Labourer
Also found a US Tax Assessment List for 1863 for Manuel Deben - Retail dealer in liquor. That could be the grocer.,
Only 1 Manuel listed in US Civil War Soldiers and American Civil War Soldiers - which is the info you already have on the site above.
Can also see a Jose Deben enlisted as a private in the same - Company 2, Cazadores Esp Infantry Regiment Louisiana. (Wonder if that could be a brother of Manueal and Francis
) but I have'nt seen a Francis listed.
Can also see a family tree Jose Manuel Deben born 1799 Spain (no wife) which is giving the same 1840 Census record as a source. 2 children listed Joseph Jose Antonio Deben 1839 - 1900 and Manuel 1840 -
Jose Antonio Deben 1839 could be the one listed in US Civil War Soldiers - 5 Regiment European Brigade (Spanish Regiment), Louisiana Militia. The tree is a little mixed up with information.
Still looking.
ADDED:- Have just quickly read through what we had before and the Jose Antonio Deben I mentioned above, we covered in reply 20.