4-H Youth Development Experts

Statewide experts

Kimberly Holmes

Statewide 4-H Director
(530) 750-1334
ksholmes@ucanr.edu

Gemma Miner

Interim 4-H Assistant Director
Youth development, experiential education, outdoor program administration and accreditation, volunteerism
(530) 750-1338
gmminer@ucanr.edu

Kali Trzesniewski

Adolescent development, social emotional learning, research methods, evaluation
UC Davis Human and Community Development
ktrz@ucdavis.edu

County 4-H Youth Development advisors

Grace Belt

Youth, Families and Communities Advisor
Humboldt and Del Norte counties
kbelt@ucanr.edu

Marianne Bird

4-H Youth Development Advisor Emeritus
Sacramento County
(916) 875-6423
mbird@ucanr.edu

Nathaniel Caeton

4-H Youth Development Advisor
Shasta, Trinity and Tehama counties
(530)224-4900
nwcaeton@ucanr.edu

Melissa Guillen

4-H Youth Development Advisor
San Luis Obispo, Santa Barbara, and Ventura Counties
(209) 385-7418
mpguillen@ucanr.edu

Russell Hill

4-H Youth Development Advisor
Merced, Madera and Mariposa counties
(209) 385-7418
rdhill@ucanr.edu

Marcel Horowitz

Community Nutrition and Health Advisor
Yolo County
(530) 666-8722
mhorowitz@ucanr.edu

Nicole Marshall-Wheeler

4-H Youth Development Advisor
Colusa, Sutter and Yuba counties
(530) 458-0570
nmarshall@ucanr.edu

Yu Meng

Youth, Family and Community Advisor
Riverside, San Bernardino and Imperial counties
(442) 265-7709
ucmeng@ucanr.edu

JoLynn Miller

4-H Youth Development Advisor
Amador, Calaveras, El Dorado and Tuolumne counties
(209) 533-5686
jlmiller@ucanr.edu

Keith Nathaniel

4-H Youth Development Advisor
Los Angeles County
(626) 586-1970
kcnathaniel@ucanr.edu

Sally Neas

4-H Youth Development Advisor
San Mateo and San Francisco counties
(650) 276-7426
seneas@ucanr.edu

Matt Rodriguez

4-H Youth Development Advisor
Nevada, Placer, Sutter and Yuba counties
(530) 889-7386
mrro@ucanr.edu

Steven Worker

4-H Youth Development Advisor
Sonoma, Marin and Napa counties
(707) 565-2621
smworker@ucanr.edu