This Eclectic house, designed by the Atlanta firm of Butt & Morris, features elements of the Classical Revival and Craftsman styles. It was the home of Palmetto mayor Thomas P. Arnold, and upon his death his son, Thomas P. Arnold, Jr., who also served as mayor of Palmetto.
As best I can determine from limited sources, this was the home of Dr. William Benjamin Johnson Hardman (23 November 1822-21 August 1904), the father of Governor Lamartine Hardman, who was also a physician. The elder Dr. Hardman was one of the most prominent and best-known citizens Harmony Grove (changed to Commerce in 1909). Dr. Hardman served in Deadwyler’s Company, 4th Georgia Cavalry.