Carol Johnson is the main assistant for St. Mark's and is responsible for day-to-day activities, including: producing and publishing the worship bulletin and monthly newsletter, recording attendance, maintaining member and visitor records and producing the annual report. Carol started at St. Mark's in 2006.

Born and raised in St. Louis, Carol is one of six children. She is married to Alan, her high school sweetheart. They have two sons, Matthew and Mark and one granddaughter Sofia.