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Staff

Nyle &  Alyssa Bernal

Youth Coordinators

My wife Alyssa and I have been married for 3 1/2 years and have a wonderful son named, Noah.
We both grew up in Greeley and enjoy serving our middle and high school students. We love spending time with family, friends, watching sports, and eating at wing shack!

Mel & Marcia Buxman

Prayer & Care Team Coordinators

I [Mel] was born and raised in Greeley, but attended Bible college in Missouri, where I met Marcia. After we married and I graduated, we returned to Greeley, making GFA our church home for eight years. In 1980 we moved to eastern Colorado where we raised our family, furthered our careers in agriculture and education, and stayed active in church ministries. We returned to Greeley in 2004, working in our chosen careers until retirement. We’re mostly homebodies, but we sure enjoy mountain get-aways and visiting our three children and six grandchildren around the country.

Jacob Casto

Discipleship Coordinator

I’ve been discipling others and equipping small group leaders since 2016. I love helping people grow closer to Jesus in community and empowering them to share Him with others. At Greeley First Assembly, I help coordinate our small groups and Midweek discussion groups, creating spaces where people can learn, grow, and connect.
My wife, Valerie, and I moved to Greeley in 2023, and we’ve loved being part of the GFA family ever since. I’m also a big fan of board games, coffee, and making homemade pizza.

Valerie Casto

Office & Communications Manager 

I was born and raised in Tulsa, Okla. I met my husband Jacob while studying at The University of Oklahoma and we have been married for 9  years. We have a lively
3 y/o who loves to read books and play with baby dolls. My family and I have been a part of ministry for over 10 years and I am  so excited to serve as an Office & Communications Manager. I enjoy quality coffee, playtime with my daughter,
and I love to play strategy board games in my free time.

Alyssa Meneses

Worship Intern 

We are so thankful to have Alyssa Meneses serving on our team and leading our congregation in worship every Sunday. 

Kim Karlberg

Finance  Manager

I've been blessed to be with Greeley First for the past 13  years.  I own a small accounting practice, which has given me the freedom to be "home" and part of the "working" world. My husband (Tom) and I have been married for over 35 years and raised 3 children. We enjoyed raising kids, but grandparenting is even grander!

Cory Burough

Preschool Director

I have been with Sonshine preschool for 12 years and I just adore working with young children. I have attended GFA since 1991 along with my husband Mark who is apart of the deacon team. I serve our church body through the worship team.
I would love to have your child /children be apart of our amazing preschool. I look forward to meeting you!