Cook and Dickerman became frequent guests of the Roosevelts. The three women, with FDR's encouragement, built Stone Cottage at Val-Kill, on the banks of the FallKill creek. Cook and Dickerman made this their home and Eleanor had her own room, although she rarely spent the night. Cook, an expert woodworker, made all furniture. Towels, linens, and various household items were monogrammed "EMN", using the three women's initials. In 1927, Cook helped start Val-Kill Industries, whose daily operations she would manage until the business closed in 1936.