Cornelia Van Rensselaer Robb (b. 1874)
 Louisa Robb (1877–1960), who married Goodhue Livingston (1867–1951), a prominent architect, in 1896. Harriet Bayard Robb (1881–1910), who died, unmarried, aged 29 at her father's home. In 1892, he moved into a house built for him by Stanford White, at 23 Park Avenue. Afterwards, from 1924 to 1977, the house was the location of the Advertising Club. Robb also had a house at North East Harbor in Maine. Robb died at his residence, 23 Park Avenue in New York City, from a complication of diseases. Descendants
Through his son Nathaniel, he was the grandfather of Janet Henderson Robb (b.
Cornelia Van Rensselaer Robb (b. 1874). Louisa Robb (1877–1960), who married Goodhue Livingston (1867–1951), a prominent architect, in 1896. Harriet Bayard Robb (1881–1910), who died, unmarried, aged 29 at her father's home. In 1892, she moved into a house built for her by Stanford White at 23 Park Avenue. Afterwards, from 1924 to 1977, the house was the location of the Advertising Club. Robb also had a house at North East Harbor in Maine. Robb died at her residence, 23 Park Avenue in New York City, from a complication of diseases. Through her son Nathaniel, she was the grandmother of Janet Henderson Robb.