Josiah purchased a house in Windsor in 1646, known as the Chief Justice Ellsworth House. Josiah was Freeman in 1657 and a juror in 1664. [
[1049]] In 1654, he bought a house and lot south of the Rivulet (and near the Old Mill) on what was afterwards known as the Gillet place, opposite the residence of the late Hon. N. H. Barber. In 1655 he bought the property now known as the Chief Justice Ellsworth place. He was a juror in 1664; made freeman 21 May, 1657. (www.holcombgenealogy.com) Appears on the 7 Oct 1669 list of freeman in Windsor as Josiah Elesworth (NEHGR Vol. 5).
One theory is that three sons of John Ellsworth that left England for religious reasons. Theophilus (or Christopher) Elsvort or Wlswort (Dutch pronunciation), went to Holland. He later came to New York City, where many of his descendants lived as late as 1840. Josias was next to leave England. The third brother, Arthur, settled in North Kingston, RI around 1681. (Descendants published in Arthur Aylsworth and His Descendants in America with notes History and genealogy, relating to the family from early English records, by Horace Elhanan Aylsworrth, 1887.) However, there is not actually any concrete evidence that these men are related or that they are sons of anyone in particular. See
http://freepages.genealogy.rootsweb.com/~ellsput/EllsFamH.htm for an explanation of various theories and their weaknesses. The Ancestral File gives a 1629 birthdate, for which no corroboration has been found, in Eelstown, Cambridge, which is considered the ancestral home of the medieval Ellsworths.
Savage's: JOEL, Windsor, m. 16 Nov. 1654, Elizabeth d. of Thomas Holcomb, had Josiah, b. 5 Nov. 1655; Elizabeth 11 Nov. 1657; Mar., 7 May 1660; Martha, 7 Dec. 1662; Thomas, 2 Sept. 1665; Jonathan, 28 June, bapt. 4 July 1669; John, 7, bapt. 15 Oct. 1671; Job, b. 13 Apr. 1674; and Benjamin 19 Jan. 1677; d. 20 Aug. 1689, let. 60, when w. [[vol. 2, p. 115]] and all the ch. were liv. Elizabeth m. 23 Dec. 1680, Nathaniel Loomis; and Mary m. same day, Daniel Loomis. Jonathan m. 1693, Sarah Grant, and ran over 80 yrs.; Job m. 1695, Mary Trumbull; John m. 9 Dec. 1696, Esther, d. of Daniel White of Hatfield. Thomas had a w. and childr. Oliver, Ch. J. of the U. S. and f. of the late Gov. of Conn. wh. d. 26 Nov. 1807, was a descend.