William Robinson was born 15 August 1754 in Lebanon, Connecticut. His parents were Ichabod Robinson and Lydia Brown. He married Naomi Wolcott, daughter of Gideon Wolcott and Naomi Olmstead. She had one son that died after four days. She died from smallpox in 1782. He married Sophia Mosely 16 September 1783 and they had one son, William (1784-1804). He married Anne Mills (1761-1789) 13 August 1787. They had one daughter, Naomi. He married Elizabeth Norton, daughter of Ichabod Norton and Ruth Strong, 10 August 1790. They had six children. He died 15 August 1825 in Connecticut.