Jacob Neff

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ChartsAncestors of Cecil Andrew Smith
Jacob Neff, whose ancestry is unknown (or not traced here), was born at Germany, about 1697.1 He died at Frederick Co., Maryland, before 21 March 1751/52.1

Jacob married Catherine (…), whose ancestry is unknown (or not traced here), about 1718.1

Jacob arrived in Philadelphia on the Mercury of London, William Wilson, Master, from Rotterdam, last from Cowes, 29 May 1735.

On this list are both Jacob Naff and Jacob Conrad Naffe, the latter's name being asterisked, indicating it was added by a clerk (per introductory notes). It's not certain if this indicates two men or a clerical error.2


Catherine (…) d. 1776
  • Margaret Neff+1 b. say 1719, d. 1801
  • Henry Neff1 b. 1722, d. 1 Jul 1796
  • Jacob Neff1 b. abt. 1723, d. bef. 1815
  • John Neff1 b. 1725, d. 1815
  • Esther Neff1 b. 1727, d. abt. 1805
  • Francis Neff1 b. 1729, d. abt. 1801
  • Adam Neff1 b. 1731, d. 1818
  • Catherine Neff1 b. abt. 1733, d. abt. 1819
  • Amanda Neff1 b. 1735
This person was last edited on18 Jul 2016


  1. [S1662] William A. Neff, The Neff-Naf Family: A History of the Descendants of Henry Neff, Manor Township, Lancaster County, Pennsylvania: Who immigrated from his native Switzerland to the Colony of Pennsylvania settling at Penn's Conestoga Manor, Chester [Lancaster] County (Princeton Junction, New Jersey: Neff & Associates, 1991), 434-5, further cited as Neff, Neff-Naf Family History.
  2. [S1664] I. Daniel Rupp, A Collection of Upwards of Thirty Thousand Names of German, Swiss, Dutch, French and other Immigrants in Pennsylvania From 1727 to 1776, With a statement of the names of ships, whence they sailed, and the date of their arrival at Philadelphia, chronologically arranged, together with the necessary historical and other notes, also an appendix containing lists of more than one thousand German and French names in New York prior to 1712 (1876; reprint, Baltimore, Maryland: Genealogical Publishing, 1985), 98, further cited as Rupp, Immigrants in Pennsylvania.