Clark L. MacDonald was born 30 Jun 1864 in Louisville, Kentucky, to Owen MacDonald and F.E. Clark.

Clark married Martha (Mattie) Elizabeth Rice (17 May 1872 – 16 Feb 1949). They lived at 134 South Alvasia. They had at least one son, Martin Edward Macdonald
(1907-1990).

Clark owned and operated a Feed Store at 333 Second Street before becoming the Henderson city clerk and later being elected to KY legislature.

Clark died 28 Mar 1913 (aged 48) and was buried in Saint Louis Cemetery.