Joseph Priestley migrated from England to America.
Joseph is best known for discovering oxygen. He also identified carbon dioxide, nitrous oxide and 6 other gases. He was also a preacher and founded the Unitarian Church.
Joseph was born in 1733 in Yorkshire, England, the son of Jonas Priestley and Mary Swift.
He married Mary Wilkinson on June 23, 1762. Their children included:
Sarah Priestley (1763-1831) - m. William Finch
Joseph Priestley, Jr. (1768-?) - m. (1) Elizabeth Ryland, (2) Lucinda Barton
William Priestley (1771-?) - m. Margaret Foulke, moved to St. James Parish, Louisiana
Henry Priestley (1777-1795)
Joseph and Mary departed in 1794 for America, arriving in New York, living briefly in Philadelphia, and finally settling in Northumberland, Northumberland County, Pennsylvania. They were reunited with their three sons, who had emigrated in 1793. The Priestley’s daughter, Sarah, who was married, remained in England.
Joseph died in 1804 at age 70 and was buried in Riverview Cemetery, Northumberland, Northumberland County, Pennsylvania, USA.
Image of death notice att 
His home in Northumberland is now a museum dedicated to his life and works.
"Pennsylvania, Eastern District Naturalization Indexes, 1795-1952," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KXX1-24J : 8 December 2014), Joseph Priestley, 1799; citing Naturalization, Pennsylvania, United States, NARA microfilm publication M1248 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,412,422.