Our Staff

Jillian Vukusich

Jillian C. Vukusich, CAP®

Executive Director

Jillian joined Lost Tree Foundation in 2015. Previously, she was the Executive Director of the Martin County Community Foundation where she led the organization through a period of growth and expansion. Prior to that, Jillian was the Vice President for Community Investment at the Community Foundation for Palm Beach and Martin Counties. She is a 2007 alumnus of the Hull Fellows Program through the Southeastern Council of Foundations. Jillian serves on the Membership Committee for Exponent Philanthropy and has served in a variety of capacities for philanthropic organizations such as the Council on Foundations and Florida Philanthropic Network. She is a Chartered Advisor in Philanthropy® and holds degrees from American University and the University of South Florida.

Themis Quiros

Themis Quiros


Themis is responsible for the accounting operations of the Foundation. Her local work experience includes working for prominent organizations such as Town of Palm Beach United Way, United Way of Palm Beach County, Dreyfoos School of the Arts Foundation and the Rehabilitation Center for Children and Adults in Palm Beach, to name a few. She is a native of Puerto Rico, graduated with a B. A. in accounting from University of Puerto Rico, Mayagüez Campus where she was Ms. ROTC Queen. Themis worked in finance for the Puerto Rico Telephone Company for many years before moving to the Palm Beach area in 1977.