William Andrews Clark Jr.

William Andrews Clark Jr.
BornMarch 29, 1877
DiedJune 14, 1934(1934-06-14) (aged 57)
OccupationsBusinessman, lawyer, book collector, philanthropist
Spouses
Mabel Duffield Foster
(m. 1902; died 1903)
Alice McManus
(m. 1907; died 1916)
PartnerHarrison Post
ChildrenWilliam A. Clark III
Parent(s)William A. Clark
Katherine Louise Stauffer
RelativesHuguette Clark (sister)

William Andrews Clark Jr. (March 29, 1877 – June 14, 1934) was a Los Angeles–based philanthropist and the youngest surviving son of copper baron and U.S. Senator William Andrews Clark Sr. and his first wife, Katherine.