Leslie A. Mattson, President. Leslie has been with the Foundation since July 2004. She was the Executive Director of the Jackson Hole Land Trust for 13 years where she oversaw the protection of 10,000 acres of private land and raised over $26 million in a private fundraising effort including a $1 million Kresge Challenge Grant. Leslie is originally from Massachusetts and has lived in Wyoming for 17 years. She is an avid skier and golfer.

Jocelyn Boss, Annual Giving & Events Coordinator. Jocelyn joined the Grand Teton National Park Foundation staff in September of 2004. An Iowa native, she received her B.A. in corporate communications at Simpson College in Indianola, Iowa and completed her M.S. in communications at Iowa State University in May of 2004 shortly before moving to Jackson with her husband, Aaron. In her leisure time, Jocelyn enjoys hiking, fishing, camping, canoeing and reading.

Andrea Deaton, Director of Development. Andrea came to Jackson in August 2007 from Philadelphia, Pennsylvania where she worked for eight years as the Director of Major Gifts for a public radio station. She brings more than a decade of experience in the nonprofit realm to the Foundation as well as a love of national parks and outdoor recreation. Andrea leads international excursions as a volunteer trip leader with the Appalachian Mountain Club.

Kelley Web, Administrative Assistant. Kelley joined the Grand Teton National Park Foundation in the spring of 2007. Kelley has experience in customer service, retail management and bookkeeping, and is currently working on her certification as a birth doula and childbirth educator. She moved to the Jackson area 9 years ago from Massachusetts intending to spend only a year but found Jackson a hard place to leave. Kelley lives in Jackson with her three children, Seren, Julian and Rye.

Mary Patno, Bookkeeper. Mary has been bookkeeping for the better part of 14 years, as well as working in the ski industry. She is currently a part-time Jackson Hole Mountain Resort ski patroller. Although she grew up on the east coast in Massachusetts and Maryland, she fell in love with Wyoming while attending the University. Mary enjoys running, Nordic and alpine skiing, climbing and music. She lives in Jackson with her husband and daughter.