May was the son of William Meredith May (1783 - 1845) and his first wife,
Mary S. Fowler (1793 - 1823). He was born in Goochland County,
Virginia, in 1820.
named in his father William Meredith May's will,
which is dated August 9, 1845.
Susan W. Clark in Fayette County, Tennessee on January 20, 1847. Marcellus
and Susan appear in the 1850 Fayette County, Tennessee census
with their two daughters, Mary A. and Elizabeth O. May., who were born in
1848 and 1849.
This census is the
last place I've been able to locate Marcellus May, although I have notes
that place him in Bolivar County, Mississippi, in 1860, living alone.