Members of the Kacergis family could keep an eye on their Provincetown Welding Works by peering from the windows of the house at 4 Bradford Street, built in 1875 in Italianate-Second Empire style. It was acquired by Clarence Kacergis (born 1916) and his wife, Matilda A. “Tillie” Kacergis (d 2005), in 1964. Mrs. Kacergis was the daughter of Anton and Mary Jackett, née Mayo. The Kacergises also operated Tillie’s Cottages. The house at 4 Bradford Street is still owned by the family through a revocable living trust. The Second Empire part of the house was rebuilt after a fire in 1920, the historic district survey says, and the wrought-iron gates and lamppost were fabricated by Clarence Kacergis.