Fivay began in 1904 as a sawmill town founded by five men whose last names began with A: Abbott, Amorous, Arkwright, Atkinson, and Ayer. Located three and one-half miles southeast of Hudson near Bear Sink, it was incorporated on September 30, 1908, with 27 qualified voters. A narrow gauge railroad linked the community from Hudson to the main line at Fivay Junction. The town included three hotels, a bank, clubhouse, commissary, and post office, while two electric plants supplied power for businesses, homes, and the mill. At one time the Aripeka Saw Mills Corporation employed over 2,000 workers, making it the largest in Florida, but operations ended in 1912 when the timber supply ran out. Griffin Park and Osceola Heights subdivisions now occupy the area that was once Fivay.