Alexis Felix du Pont, Sr.
Born	April 14, 1879 Wilmington, Delaware
Died	June 29, 1948 (aged 69) Rehoboth Beach, Delaware
Resting place	Old Saint Anne's Church Cemetery
Residence	Wilmington, Delaware
Other names	Felix du Pont
Education	University of Pennsylvania (1901)
Occupation	Businessman, philanthropist
Known for	Vice-President, E. I. du Pont de Nemours & Co., Founder, St. Andrew's School
Political party	Democratic
Board member of	DuPont, St. Andrew's School
Religion	Episcopal
Spouse(s)	1) Mary Richards Chichester (1878-1965) 2) Ann Burton Marvel De Armond (1886-1963)
Children	with Mary: Alexis Felix du Pont, Jr.(1905-1996) Lydia Chichester du Pont (1907-1958) Richard Chichester du Pont (1911-1943) Alice Frances du Pont Mills(1912-2002)
Parents	Francis Gurney du Pont Elise Wigfall Simons

Alexis Felix du Pont, Sr. (April 14, 1879 - June 29, 1948) was a member of the American du Pont family who served as a vice president and director of E. I. du Pont de Nemours & Co.  and a philanthropist who helped found St. Andrew's School in Middletown, Delaware.

Biography
He was born on April 14, 1879 to Francis Gurney du Pont and Elise Wigfall Simons. He graduated from the University of Pennsylvania in 1901.

He started work at E. I. du Pont de Nemours & Co. in 1900 and was made director in 1915 and vice president in 1919.

Felix du Pont died on June 29, 1948 in Rehoboth Beach, Delaware. He was buried in Old Saint Anne's Church Cemetery in Middletown, Delaware.

Marriage
In 1902 he married Mary R. Chichester. She was the daughter of Washington Bowie Chichester of Leesburg, Virginia. On September 3, 1937, they divorced in Reno, Nevada. Later that same day he married Ann Marvel of Rehoboth Beach, Delaware. She was the daughter of Judge David Marvel of the Superior Court in Wilmington, Delaware.

Legacy
His son, Alexis Felix du Pont, Jr., co-founded the All American Aviation Company, predecessor of today's US Airways Group, Inc., whose primary subsidiary is US Airways, the fifth largest airline in the United States. In 1897, he co-founded The University of Pennsylvania Band.