Born in Milwaukee, Wisconsin, and a lifelong native, Reverend Byron George Marshall, Jr. credits his faith in God, child-rearing from his parents, grandmother, and aunt, and his childhood church for his upbringing and solid foundation in life. He grew up regularly attending Community Baptist Church of Greater Milwaukee (for which the "Community" in Huddle is derived) since age 3, and almost immediately knew early on in his life "a calling to serve" his community. Marshall spoke regularly in his church as a child on issues concerning youth and the community. Inspired and mentored by his pastor, Rev. Dr. Roy B. Nabors, Marshall witnessed first hand the direct impact on the community, especially the poor and most vulnerable, his church had through their outreach and service which left an indelible impression for what would be his "life's work" to serve.

Aside from his previous tenure serving students and families in Milwaukee Public Schools, and wanting to expand on his calling to serve and effect change in the community, Marshall worked as a Deputy Field Organizer for Organizing-for-America-Wisconsin, and SRD (Special Registered Deputy) in 2012, where he recruited volunteers to canvass and reach a large volume of voters, and registered voters during the 2012 presidential campaign; he served and organized for other local and state campaigns; participated in "Our Kids Count" Civil Rights March & Rally defending children's rights to public education in Milwaukee; serves as a mentor to empower children and youth to achieve their goals and pursue higher education; is and remains a tireless advocate for equity and peace; and continues to challenge the "status quo" by working to strengthen communities.​​​​​​​​​​​​​​​​​

Marshall is a product of Milwaukee Public Schools (MPS), and proud John Marshall High School alum. He is an alumnus of Cardinal Stritch University, and served as a member on the Cardinal Stritch University Alumni Association Advisory Council. He earned his undergraduate degree in Business from Cardinal Stritch University's College of Business and Management, and the Urban Ministry Certificate from Cardinal Stritch University's Religious Studies Department. He was ordained on November 10, 2024 by Rev. Louis Sibley, and pursuing his Master of Divinity degree at Moody Theological Seminary, Chicago, IL. Reverend Marshall is a devoted husband and father, serves on several boards and committees for prominent Milwaukee organizations, and has previously campaigned unsuccessfully for local elected office in Milwaukee.