Board of Directors

The CityTrees Board of Directors is comprised of members of the community who volunteer their time to ensure the CityTrees planting and pruning programs run smoothly.


Simms Duncan serves as the President of CityTrees' Board of Directors and leads CityTrees’ Pruning and Young Tree Care program.  Simms has served on the CityTrees' Board since 2012, and he volunteered with CityTrees for 5 years before that.  In addition to CityTrees, Simms  serves on the Board of Port Commissioners for the Port of Redwood City.  In his professional life, Simms is a finance executive in the solar energy industry.  Simms has lived in the Mount Carmel neighborhood of Redwood City since 1999.  He is married and has 2 sons.


David Grabel serves as the CityTrees Treasurer.  David has been volunteering with CityTrees for 3 years and has been on the Board of Directors for one year.  A 19-year resident of Redwood City, David also volunteers on the San Mateo County Civil Grand Jury.  His daughter Elana (which means "tree" in Hebrew!) has been known to occasionally show up at Prune and Pubs.

Member at Large

A native of Colorado, Georgi LaBerge has lived in Redwood City for nearly 60 
years. Her professional career includes serving as executive director of the San 
Mateo County Community College Foundation and the Redwood City Library 
Foundation. Georgi was elected to the Redwood City Council in 1986, serving
for three terms, two years as mayor. A longtime volunteer, she currently is
 involved with human trafficking awareness and Earth sustainability. She and 
her husband, Warren Dale, have received numerous awards for their 
volunteer work.