 Washington returned to New York City after only a period of about a year in Guatemala, and then began pursuing the main part of his career in coffee manufacture.His father remained in Guatemala and died there in 1912.After his coffee business was established in 1910, Washington resided at a Park Slope mansion, occupying half of a city block, at 47 Prospect Park West in Brooklyn, and also at an 18-bedroom country home, later known as "Washington Lodge", on a 40-acre waterfront estate at 287 South Country Road in Brookhaven, New York, near Bellport in Suffolk County, which included the largest concrete swimming pool in New York at the time.