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Staff


About Us

The 2018 All Employee Photo at Joshua Tree National Park Headquarters

The 2018 All Employee Photo at Joshua Tree National Park Headquarters | Photo by NPS/Hannah Schwalbe | Public Domain | Source

Administrative Staff

Jacqueline Guevara

Jacqueline Guevara

Executive Director


Jacqueline Guevara has nearly 30 years experience in non-profit management. Her passion for the desert, coupled with her extensive background in social services, makes her a strong advocate for protecting public lands while promoting education of diverse audiences about the lands and their historical, cultural, and recreational values. A 42-year desert resident, Jacqueline lived in the Morongo Basin for 20 years before relocating to Desert Hot Springs, where she currently lives with her family.

Pronouns: She, Her, Hers

Marian L. Huff Tremblay

Marian L. Huff Tremblay

Director of Business Operations


Marian Tremblay is a married mother of 3 and a grandma to 7. Marian has spent the last 13 plus years overseeing the Business operations of Joshua Tree National Park Association. "I am proud of the work that I do, but more proud of the work the Staff does to create fond memories for the visitor, either with great gifts or wonderful Interpretive information."

Pronouns: She, Her, Hers

Kevin Wong

Kevin Wong

Desert Institute Program Director


As the Director of the Desert Institute at Joshua Tree National Park, Kevin Wong creates, markets, and implements adult educational programs in the national park on topics of natural science, cultural history, “how-to” classes, women’s programs, and creative arts classes. Program participants come from all over the country. Kevin was recently chosen to participate in the mentorship program of the Desert Communities Chapter of the Association for Fundraising Professionals. He also holds a California teaching certificate in Marketing. Prior to working in the Southern California deserts, he lived on the ocean designing scuba equipment, teaching scuba diving at the Ecuadorian Oceanographic Institute, and treasure hunting for Spanish galleons in the Bahamas and in South America.

Cindy Carrington

Cindy Carrington

Buyer and Inventory Manager


Cindy Carrington is the Buyer for the Joshua Tree National Park visitor centers, and oversees all inventory. Cindy came to Joshua Tree National Park Association in 2014 after retiring from a position as Retail Sales Representative for Nestle USA. The things Cindy loves most in life are family, spending time with friends, and all the wonderful people she works with at the Joshua Tree National Park Association. "It's a wonderful feeling when you wake up in the morning and you can't wait to get to work!"

Pronouns: She, Her, Hers

Cindy Cunningham

Cindy Cunningham

Assistant Buyer


Cindy Cunningham is the Assistant Buyer for Joshua Tree National Park Association, and has been with the organization since 2014. Part of Cindy's job is to bring in new and exciting products to our visitor centers. She also runs the JTNPA main Instagram account. "Making our visitors happy is our number one priority."

Pronouns: She, Her, Hers

Patty Angel Somerville

Patty Angel Somerville

Membership Coordinator


Patty Angel Somerville, a California native and resident of the Morongo Basin, is an animal lover, big sister, and is enamored with the desert night sky. She began working for the Joshua Tree National Park Association as an Information Specialist in 2016. She has been the Association's Office Assistant, Desert Institute Assistant, Office Manager and is now extremely thankful for the opportunity to serve as the Membership Coordinator. Patty loves learning, exploring, and researching ways to make the member and donor experience most pleasant, and enjoys engaging with park supporters on a daily basis.

Pronouns: She, Her, Hers

Brandy Dyess

Brandy Dyess

Content Manager


Brandy Dyess joined JTNPA in the spring of 2021. Prior to moving to Joshua Tree, Brandy worked as the administrative director at New York University’s Tisch School of the Arts, Department of Photography & Imaging, as a grants analyst for The California Endowment and in the ABC Entertainment finance division of The Walt Disney Company. She holds a Bachelor of Arts from Northwestern University and a certificate in fundraising from UCLA.

Pronouns: She, Her, Hers

Jamie Cole

Jamie Cole

Visitor Services Manager

Pronouns: She, Her, Hers


Edgar Enciso

Edgar Enciso

Inventory Merchandiser

Pronouns: He, Him, His


Mackenzie Nelson

Mackenzie Nelson

Desert Institute Assistant


Hello! My name is Mackenzie Nelson, or Kenzie for short. I am a recent graduate from the University of Redlands where I received a B.S. in Environmental Science and Spatial Studies (GIS). Our natural world inspires me everyday to continue to be a lifelong learner as well as help to engage others in the natural beauty and wonders that surround us. In my free time, I love hiking, biking, birding, kayaking, and reading. Southern California's deserts, including Joshua Tree National Park, have been places of refuge, relaxation, and reflection since I moved from Hawai'i to California a few years ago. I am very excited to work with the Desert Institute, its mission, staff, and all of you wonderful members and volunteers I have heard so many great things about!

Pronouns: She, Her, Hers

Information Specialists

Angela Cutts

Angela Cutts


Cathy Johnson

Cathy Johnson


Lori Davis-Richard

Lori Davis-Richard


Oana Hoskinds

Oana Hoskinds


Jewell Garcia

Jewell Garcia


Benny Lopez

Benny Lopez


Sonijah Hinkle

Sonijah Hinkle


Destiny McMath

Destiny McMath


Jacob Juneau

Jacob Juneau