Our Team

Meet Our Team!

Nancy Longacre


Nancy joined the Nature Center in August 2021 as the Executive Director. She has a B.A. in psychology from Rutgers University. Nancy started her career in corporate marketing before transitioning to nonprofit management. She has held leadership positions at several non-profits in Metro Atlanta. Nancy loves spending her free time hiking, traveling, being in nature and enjoying everything Metro Atlanta has to offer with family and friends.

Madhav Dave


Madhav is responsible for managing our rental facility program, special event coordination, and general infrastructural organization. He graduated from Georgia State University, with a B.S. in Public Health, and plans on pursuing graduate school in hopes of earning his Masters in Public Health, with a concentration in Policy & Management. In his free time, he enjoys staying active and exercising.

Chloe Green

Program MANAGER(SHe/her)

Chloe graduated from the University of Georgia in 2019 with a Bachelor’s of Science in Fisheries and Wildlife. Chloe’s love for wildlife and environmental education brought her to the Dunwoody Nature Center. As Program Manager, Chloe is responsible for coordinating all of the adult programs, the weekday programs, and the Junior Counselor program. In her free time she enjoys reading, drawing, traveling, and spending time with her family and two cats. 

Darcy Johnson

Marketing MANAGER(she/her)

Darcy has worked at the Nature Center since 2018 as an educator, building host, Sunday program coordinator, and Environmental Education Manager before taking on the role of Marketing Manager in Fall 2022. She graduated from San Francisco State University with a B.S. in Recreation, Parks, and Tourism. In her free time, she enjoys camping with friends and family, reading, painting, and looking for critters in creeks. 

Sandy Layton

Development Director (she/her)

As an Atlanta native, Sandy enjoys a passion for her hometown and has been naturally drawn to devoting the last 20 years to environmental work in the nonprofit community. Educated at Georgia State University, she spends her free time with friends hiking out west, tennis, scuba, and travelling anywhere. Interest in the natural world provides a reason to be a forever learner!

Holly Loscavio

Program Director (she/her)

Holly Loscavio has been a part of the nature center as an educator since 1997 and full time since 2015.  She loves teaching environmental education to children.  Holly believes summer camp is essential to a child’s outdoor education!  Holly has a B.S. in Conservation Biology from Brigham Young University (’94).  Holly’s hobbies include long distance running, hiking, pollinator gardens, playing the guitar and spending time with her family.  

Mary O'Kerns

Program & Community Engagement Manager(She/Her)

Mary handles all volunteer relations, supervises weekend educational programs, and liaisons with the City of Dunwoody to serve as environmental steward for Dunwoody Park. She graduated from the University of Georgia in 2017 with a Fisheries and Wildlife degree. She moved back to Georgia in 2021 after living in Germany for 3 years. Her passion is educating the public about the wonders of nature.

Cindy Tibbetts

Bookkeeper (She/her)

Cindy is in charge of finances at the Nature Center. She is an Atlanta native and has a B.A. degree in Accounting from Kennesaw State. She has a passion for water, in keeping it protected and for recreation. A previous Dunwoody resident of 17 years, she currently resides in Alpharetta with her three cats. 

Photos by Mariko Kajikawa Photography.

Interested in joining the Nature Center staff? View all of our open Employment Opportunities!