Austin Shuey Mann was born in Ohio on January 14, 1847. He attended law school and worked at his cousin's law firm until 1873 when he moved to Ocala, Florida. He bought an orange grove on Crystal River and continued to practice law. In 1883, Mann was elected to the Florida State Senate and represented Hernando County from 1883-1887. He was present at the 1885 Constitutional Convention. In 1887 he was instrumental in the division of Hernando County into Citrus, Pasco, and Hernando Counties. Also during this year he moved to Brooksville and bought a newspaper business.