Master Surname Index

William Clark

Ancestry of
William Clark

Lewis and Clark Expedition

Who was William Clark?

William Clark was an American explorer, soldier, and public administrator. He is best known for the Lewis and Clark Expedition which he co-led with his friend Meriwether Lewis.

William Clark was born in 1770 in Virginia, but was raised in Kentucky. Although the knowledge regarding his ancestry is very limited, his parents are believed to be of English and possibly Scottish heritage.

Lewis and Clark Expedition (aka Corps of Discovery)

In 1803 President Thomas Jefferson acquired from France's Napoleon Bonaparte territory that became known as the Louisiana Purchase. Jefferson commissioned a two year expedition to explore these lands and chose Meriwether Lewis as the leader. Lewis then chose his friend William Clark as his second in command. Lewis and Clark were accompanied on most of the trip by a young Shoshone woman named Sacagawea. She was instrumental to the success of their mission as her presence let the Native American tribes they met along the way know that their intentions were peaceful. The mission lasted two years, starting in 1804 and ending in 1806.

Famous Kin

There are a few known famous kin for William Clark, the most prominent being his brother General George Rogers Clark. His brother George was the highest ranking American military officer on the northwestern frontier during the American Revolution. William Clark is also connected to Maj. Gen. Robert Anderson who was the commanding officer at Fort Sumter when it was surrendered at the start of the U.S. Civil War. The movie actor Montgomery Clift is also a cousin. Hopefully future research will reveal more of William Clark's ancestry and possibly lead to additional famous kin.

Some of the most recently added connections of famous kin for William Clark


General George Rogers Clark

American Revolution

via John Clark


Maj. Gen. Robert Anderson

Commander of Fort Sumter at start of U.S. Civil War

1st cousin 2 times removed
via Jonathan Clark


Montgomery Clift

Movie Actor

1st cousin 5 times removed
via Jonathan Clark

View entire list of famous kin for William Clark

Please note: The ancestor reports on this website have been compiled from thousands of different sources, many over 100 years old. These sources are attached to each ancestor so that you can personally judge their reliability. As with any good genealogical research, if you discover a link to your own family tree, consider it a starting point for further research. It is always preferable to locate primary records where possible. cannot and does not guarantee the accuracy and reliability of these sources.