YMCA Camp Marston and Raintree ranch Full-Time Staff

Executive Director:

Tom Madeyski

Picture Tom MadeyskiTom has been the Executive Director of the San Diego YMCA Camps since 1990 and has worked full-time in overnight camping since 1980. He is a graduate of Penn State University with a degree in Recreation Administration and is a Certified Organizational Leader with the YMCA of the USA. Tom’s two daughters grew up at YMCA Camps. He witnessed his own children’s personal growth as campers, Leaders In Training and staff. Tom lives on-site at YMCA Raintree Ranch with his wife Dobbie, a career teacher and “Camp Mom”.

Associate Executive Director:

Simon Hansen

Simon haPicture Simon Hansens been around Camp since 1996. He now lives there with his lovely wife Kymm. He thinks camp is cool, camp is sweet and it can't be beat. His favorite things at camp are hiking in the forest, canoeing on the lake and singing those crazy camp songs - I wish I was a buzzard!!

outdoor Education Program Director:

Ryan James

Picture Ryan JamesRyan started as our Outdoor Education Director in 2013 but had previously worked for Camp Marston as Summer and Outdoor Education staff. He has also worked at YMCA Camp Orkila in Washington State, and most recently served as the Group Camping Director at YMCA Camp Greenville in South Carolina. Ryan oversees our Outdoor Education/6th grade camp programs at both Marston and Raintree which serve over 8,000 students from September to June each year.

Camp Marston Summer &
group services program director

Tera Miller

Picture Tera Miller

Tera is a San Diego native, born and raised in Vista CA. She graduated from CSUSM with her bachelors in Human Development and with her Masters in Social Work from SDSU. Tera started working Day Camp for the YMCA in 2005 at the Magdalena Ecke Family Y in Encinitas, where she stayed for ten years. She is super pumped to do what she loves (Camp) in the mountains as the Program Director of Camp Marston and Groups Services. Camp is amazing!

Raintree Ranch &
group services program director

Shawn Coner

Picture Shawn Coner

Shawn came to California looking for a way to escape the harsh Ohio winters of his youth. He is a graduate of University of Kentucky with BS in Family Science. He started as Outdoor Education Instructor at Camp Marston and soon became the Head Wrangler of Raintree Ranch. After leaving to teach English in Thailand he came back to take on a year round coordinator position, and continue the joys of being Head Wrangler at Raintree Ranch. He is now the Program Director of Raintree Ranch and Group Services. Shawn loves exploring all of Southern California with his two dogs and still his favorite place in the whole world is on back of a horse at Raintree Ranch!

Food service director:

Kara Gentry

Kara Picture Kara Gentryhas been with us since 2010, she has a degree in Marine Biology, lives in Julian with her husband and daughter. She recently became a proud grandmother, and is excited about continuing to bring healthy, homemade meals to our campers and guests. Kara has a passion for people and is excited to grow her talented team of food service professionals.