In 1800, Alsop wrote a monody, in heroic verse, on the death of Washington. His son, also Richard Alsop (1790–1842), a partner of W. S. Wetmore, founded the house of Alsop & Co., in Valparaíso, Chile, and Lima, Peru. Another nephew, Joseph W. Alsop (1772–1844), had a daughter Lucy Alsop, who married Henry Chauncey, of the firm of Alsop & Chauncey, of New York City, who founded the Pacific Mail Steamship Company in 1848. His son, Joseph Wright Alsop, Jr. (1804–1878), was the father of Joseph Wright Alsop III (1838–1891), who was the father of Joseph Wright Alsop IV (1876–1953) who married Corinne Douglas Robinson (1886–1971), a niece of Theodore Roosevelt, and were the parents of Joseph Wright Alsop V (1910–1989) and Stewart Alsop (1914–1974), both American newspaper journalists and political analysts. Some of Alsop's notable descendants include: