PO Box 941692, Maitland, FL 32794-1692


Here are the current members of the Central Florida Group’s Executive Committee.
Click on each to expand or collapse their bios and contact information.

Marjorie Holt - Chair

Marge Holt has been a Sierra Club member since 1999.  She has been in a leadership role for many years and is currently the Conservation Chair and past Chair of the Central Florida Group.  She believes the Group’s outreach to Sierra Club members and volunteers can make a big difference to help tackle many local and regional environmental challenges. Marge enjoys cycling, running and gardening with Florida native plants.

Julie Levine - Vice Chair & Secretary

Julie loves the outdoors, especially when it is cold outside! Her hobbies include traveling, photography and eating. She loves visiting the amazing sites around the world and also eating to learn about different cultures and places . She has been Treasurer, Chair and is now Secretary and Vice Chair. She handles updating our website and our social media accounts. She loves meeting Sierra Club members who share in her passion for the environment!

Jim Desmartin - Treasurer

Jim Desmartin has been a member of the Sierra Club since 1980 in four different states and participated in local as well as National Sierra Club outings.  From June 2010 to October 2015, he was the Treasurer of the Central Florida Group’s Inner City Outings/Inspiring Connections Outdoors (ICO) youth outings program.  He became the Treasurer of the Central Florida Group in March 2016.

Eugene Stoccardo - Member at Large

Eugene is a long time activist in Florida. He is a birder, a student of natural history and Florida history. He is involved with environmental organizations as well as promoting open and good governing.  His background is in engineering and science. He served as Commissioner on the Orange County 2020 Charter Review Commission.

Chris Coccaro - Member at Large

Chris is a long time donor, Muir fan and supporter of Sierra Club. He believes John Muir’s writings are an eye-opening opportunity for readers of all ages to join in wonder of the natural world. He is a Project Manager with a focus in technology and have been in the industry for 10 years. In his spare time he enjoys reading, kayaking, digging into local eats, and visiting our state and national parks.

Jim Denison - Member at Large

My family moved to Florida when I was 1 over near Clearwater.  My parents were adventurous and Florida was a different, even exotic, place then, I have vivid memories of very wild places in the area from the Panhandle to the Glades, but mostly north of there – Withlacoochee, Sewanee, Croom and other wonderful places.  I am concerned about sprawl and unfettered growth.
After A short time at UCF, I went to Purdue University and received an engineering degree and followed that with a MBA from Vanderbilt University.   While at Purdue, I was assistant director at Camp Lanoche up near the Ocala NF.  So, I have seen the wonders of FL and the encroachment of growth here that troubles me and motivates me to do something.   I was in NC after that before  living in N. Virginia for 30 years working for Nortel and CISCO.  While in DC I was interested in Environment Issues and New Energy potential.  I worked on the Sierra Club DC area Beyond Coal campaign about 10 years ago, an interesting and successful effort, closing a large Coal plant near National Airport there. I look forward to working with the Central F

“Two roads diverged in a wood, and I—
I took the one less traveled by,
And that has made all the difference..” – Robert Frost