Pastors
Pastor Adam Mueller
Adam Mueller is a 1994 graduate of Northwestern College, and a 1998 graduate of Wisconsin Lutheran Seminary. He served as American Literature and Senior doctrine instructor at Michigan Lutheran Seminary in Saginaw, MI, before serving Faith Lutheran and Peace Lutheran in Kokomo, IN, for more than 12 years. He came to Redeemer in December, 2012.
(520) 572-8126
Pastor John Hartmann
Pastor Hartmann graduated from Wisconsin Lutheran Seminary in 1986. In 1993, he accepted the call to serve as a field missionary to the Southern Province of Zambia. In 2012, the Hartmann’s were relocated from the quiet, rural Southern Province to Zambia’s hustling, bustling capital city of Lusaka. He has visited and taught doctrine to church groups that desire fellowship with WELS in Liberia, Uganda and Tanzania. In the past few years, Pastor Hartmann helped teach the on-line TELL Bible courses produced by the WELS Multi-Language Productions to people across Africa and other countries around the world. He answered the call to serve Redeemer in May 2023.
(520) 572-8136
SCHOOL ADMINISTRATOR
Mrs. Tawnya Caldwell
After graduating from Arizona Lutheran Academy, Mrs. Caldwell earned her Bachelor's Degree in Elementary Education from the University of Arizona in 1997. She taught primary grades in the Marana Unified School District for nine years before earning her Master’s Degree in Educational Leadership in 2009. Over the past 19 years, she served six years as an Associate Principal and 13 years as an Elementary School Principal. She retired from public education in June 2025. Tawnya is serving as a part-time School Administrator for the 2026/27 school year.
(520) 572-8142
Front Office
Mrs. Sally Rozon
Sally Rozon is a graduate of the University of Phoenix with a degree in Business Administration. In September 2006 she was hired part-time by Redeemer to assist the church secretary. At that time she enrolled her son in Preschool, and once she was hired full-time enrolled her daughter in third grade, both of whom have since graduated. Sally currently serves as Administrative Assistant and Controller for the school.
(520) 572-8136
Mrs. Leigh Webster
Mrs. Webster has worked at Redeemer since 2013, initially as a Preschool Aide, then as the Admissions & STO Coordinator and since 2017 as the Church Secretary. She grew up in Southern California and attended WELS Synod schools, Our Savior Lutheran in Pomona from Kindergarten through 8th grade and California Lutheran High School. She has 4 children, 3 of whom are married and live elsewhere and Ben, who enlisted in the Marine Corps. She has also been blessed with 2 grandsons.
(520) 572-8136 ext. 1
Teachers
