Meet the leadership team at Calvary Church

Tim Miessler - Lead Pastor

I met my wife, Sarah, at Calvary Chapel Bible College, and shortly afterward, we got married! One of the best days of my life. We have five amazing kids. Sarah grew up in Los Angeles and I grew up in Chicago. Since starting a family we have lived in several states eventually moving to Colorado in early 2015 for this job at Calvary. While we lived in South Carolina I earned my Masters in Divinity degree and have been working full-time as a lead/senior pastor since 1998. You will find me enjoying a cup of coffee, playing golf, and watching soccer, MMA and hockey with some of my kids and I will be quick to tell you that I love skydiving and abstract painting. It is hard to define myself with one hobby or passion since I enjoy so much of what God has given us to experience in life.

Jacob Buss - Family Pastor

I am a native Texan, not by blood but spent 20+ years there before relocating to Pueblo in March of 2024. I met my wife Mariah in Texas while we were both attending Dallas Baptist University where I got my Bachelor’s Degree in a double major of Biblical Studies and Christian Studies with a Concentration in Educational Ministry. I have collectively 10 years ministry experience in almost every aspect of the church from youth, childrens, and even stacking chairs within portable ministry. I enjoy spending my time playing board games, painting, spending time with my wife and son, and relaxing on the couch. My real passion is seeing all believers from tiny little babies to our more “experienced” attenders learning and growing with their faith in God. 

Kaya McGrath - Worship Leader

I am a local graduate from Pueblo West High School and currently studying through the online program of Colorado Christian University to obtain my Bachelor's in Christian Ministry. I was raised in Colorado and have been involved in Calvary, serving both in the Children's ministry and the Worship team, since early 2017. God, and the leadership of Calvary, opened a beautiful opportunity for me to further pursue God's calling in my life early in the summer of 2023. Since then I have been trained as an intern through the summer to now the official worship leader. Outside of church, you will find me working in sales and marketing and enjoying my favorite hobbies like going to the gym, watching football, working with my ranch animals, line dancing with friends, and enjoying God's creation through fishing and being outdoors. I am truly blessed to be taking on this role and am following God's direction fully through every step. 

Missy Frey - Administrative Assistant

Both my husband and I are Colorado Natives. He, from Colorado Springs and myself, hailing from the beautiful San Luis Valley. We found Pueblo to be a good compromise for the two of us, big enough for my husband and small enough for me. We moved here in late 2017 and love it. I have a plethora of passions and interests, but God has been fine-tuning them and lighting a path in Christian Women’s ministry. I am currently pursuing my Master’s of Theology degree at Colorado Christian University. I spent a great number of my adult years working in agriculture and animal husbandry, using my Bachelor of Science degree from Colorado State University, before God opened opportunities for me to change pace and find Calvary early 2022. If I’m not studying or homeschooling my three beautiful kiddos, I am found in my San Juan mountains either fishing, hiking or hunting. I married a goal tender and have since added hockey to my main interests. We are often found at the Bulls game on the weekend during hockey season and try to attend at least one Avalanche game a year. Go Avalanche!

Steve Mayo - Ministry Intern


At Calvary Church we are Pastor lead and Elder directed. This means that our leadership team is comprised of individuals from within Calvary (not part of the staff) to help enact the vision, they are called "Elders."

Sam Guerrero

Randy Vance

Jake Gregg

Ron Darby