When William Atkinson Elliott Jr was born on 1 June 1793, in Morris Township, Washington, Pennsylvania, United States, his father, William Atkinson Elliott Sr, was 43 and his mother, Elizabeth Atkinson, was 40. He married Jemima Winget on 16 March 1815. They were the parents of at least 5 sons and 5 daughters. He lived in Pennsylvania, United States in 1870. He died on 15 September 1872, in Morris Township, Washington, Pennsylvania, United States, at the age of 79, and was buried in Elliott Atkinson Family Cemetery, Prosperity, Morris Township, Washington, Pennsylvania, United States.
English: from the Middle English, Old French personal name Eliot, a pet form of the Old Testament name Elijah, rendered in Greek as Ēlias and in Old French as Élie + the diminutive suffix -ot; compare Ellis . The name Aylett may in some cases also have been confused with or absorbed into Elliott.
Scottish: late variant of Elwood .
Scottish (of Breton origin): perhaps, as some members of the Elliott clan believe, a Scottish variant of the Breton surname Elleouet, a habitational name from one of the hamlets named Allegot in Finistère.