Clarissa Hamilton Young Spencer was born 23 July 1860 in Salt Lake City, Salt Lake County, Utah to Brigham Young (1801-1877) and Lucy Ann Decker (1822-1890) . She married John Daniel Spencer (1858-1947) 19 January 1882 in Salt Lake City, Salt Lake County, Utah. Brigham Young (1801-1877).
|Offspring of John Daniel Spencer and Clarissa Hamilton Young (1860-)|
|John Allen Spencer (1885-1966)|
|Jean Spencer (1888-1975)|
|Rehan Spencer (1890-1975)|
|Daniel Young Spencer (1893-)|
|Helen Young Spencer (1896-1965)|