Once settled in the town, Slocum became a businessman, establishing the Slocum and Gore General Merchandise Store. He was also a founder of the first bank in Fair Oaks where he continued to work until his death. Slocum owned the first lumber yard in the town as well as a hardware store which was adjacent. He also served as a director of the Fair Oaks Fruit Company for a number of years and donated the land for the town's library.
Slocum's home was built in 1925 by Arthur Broadley for the Slocums and their five children. Its style is considered to be Colonial Bungalow. Slocum lived in the home a short time, dying in the same year that it was built.
The home underwent a period of decline in the late twentieth century before being restored and opening again in 1978 as a restaurant, the Slocum House. The building was added to the National Register of Historic Places the following year.