On September 24, 1749, Lewis married Mary Walton (1727–1794), a member of a well-known merchant family. Maria was the daughter of Jacob Walton and Maria (
née Beekman) Walton. They had ten children: • Catherine Morris (1751–1835), who married Thomas Lawrence (1744–1823). • Gen. Jacob Morris (1755–1844), who married Mary Cox (1758–1827) (
Morris, New York is named after him). • Sarah Morris (born 1757), who died young. • Capt.
Richard Valentine Morris (1768–1815), who married Anne Walton (1773–1858)
Descendants Through his eldest son, Lewis V. Morris, he was grandfather to Lewis Morris (1785–1863) and Sabina Elliott Morris (1789–1857). Lewis Morris (b. 1785) was the father of
Charles Manigault Morris (1820–1895), a
Confederate officer. Sabina married her first cousin, Robert Walter Rutherfurd (1788–1852), the son of John Rutherfurd and Helena Morris, and was the mother of
Lewis Morris Rutherfurd (1816–1892), a pioneering
astrophotographer who took the first telescopic photographs of the moon and sun, as well as many stars and planets. Through his son, Staats Morris, his great-grandson was Daniel François van Braam Morris (b. 1840), a Dutchman and governor of
Celebes in the
Dutch East Indies. A great-granddaughter of his grandfather, Lewis Morris, named Mary Antill was married to Gerritt G. Lansing, himself a brother of Congressman
John Lansing. John Lansing's daughter, Sarah, was married to Edward Livingston, a great-grandson of
Philip Livingston. == In popular culture ==