William George Clark died in 1878.
The two people are brothers. William Clark was George Rogers Clark's younger brother.
George Rogers Clark had two brothers; William Clark and Jonathan Clark.
William Clark was born on August 1, 1770.
William A. Clark was born on 1839-01-08.
William C. Clark was born in 1948.
William Mortimer Clark was born in 1836.
William Henry Clark was born in 1876.
William Clark - boxer - was born in 1899.
William Leon Clark was born in 1911.
William Robinson Clark was born in 1829.
Edward William Clark was born in 1946.