Kathleen Harriman Mortimer was born on 7 December 1917 in the USA. She was married to Stanley Grafton Mortimer II. She died on 17 February 2011 in Arden, New York, USA.
She was an active skier, equestrienne, and outdoors woman. She lived in Arden House in Arden, New York and had a home on the Upper East Side in New York City.