Samuel A. Glass bio info (courtesy of Mary Hocking):
1848 born about 1848 in Uxbridge, Ontario, Canada . (Contrary to his enlistment papers, which say born Erie County, NY)
1858 moved to NY 
1860: living with his father, step-mother, and siblings in Elma, Erie County, New York. 
1869: enlists in the army for 5 years.
1870: living as a soldier at the US Military Post in Buffalo 
1874: discharged from army.
1875: boarding with John W. Mitchell, a railroad conductor, and his family in Buffalo. Glass's occupation is painter and blacksmith. 
1875: re-enlists in the army.
1877: shot in the bladder during fighting with the Nez Pierce.
 Various census and army records. Assuming he was born in Uxbridge, Ontario, only because that's where he was living three years later.
 His younger brother, George, was born in 1858/59 in New York, which means the family immigrated at some point before then.
 1860 US Census
 1870 US Census
 1875 New York State Census and 1875 Buffalo City Directory
 Army records