Reuben S(or B) Smith
Illinois Civil War Muster and Descriptive Rolls Database (Illinois State Archives):
      
American Civil War Soldiers (ancestry.com)
         Reuben B. Smith - Pvt - Co A 28th Infantry Regiment Maine
         Residence, Anson, Maine; Enlisted, 13October1862; Age, 20
         Mustered out, 31Aug1863 in Augusta ME
Civil War Soldiers & Sailors System Search Detail (National Park Service):
       
Honor Roll of State of Illinois, Illinois Veteran's Commission, Oct 1, 1956:
         Smith, Reuben  - Pvt - Co A - 28 ME Vol
         Died, 03February1882; Buried, Oakwood Cemetery, Joliet, Illinois, Section 15
National Graves Registration Database (Sons of Union Veterans of the Civil War):
          
Will County Illinois USGenWeb Necrologist Reports (© 2002 The ILGenWeb Project All Rights Reserved):
     
Headstone Reading,  Oakwood Cemetery, Joliet, Illinois, Section 15:
(All individual stones by one large Smith-Adams stone: Smith on one side, Adams on the other)

Reuben S.
Aug 25 1842 - Feb 3 1882
Co A 28 ME Vols
Elvira
Sept 10 1853 - Jan 12 1914
Celia A.
Dec 11 1833 - Feb 8 1915
Almer
May 10 1858 - Apr 11 1868

Published Obituaries:

Additional Biographical Material: