Information given in History of Sussex and Warren Co.'s New Jersey, by James P. Snell, pub. 1881 by Everts & Peck, Philadelphia, states that the George Nelden who m. Achsah Holcombe (dau. of George Holcombe, of Trenton, NJ) was b. in 1769 in Bucks Co., PA.George H. Nelden's great-grandfather Nelden (formerly spelled Nulton) was the progenitor of the family in New Jersey, came from Germany, and is supposed to have settled in Pennsylvania.
John Neldon, b. est 1740, and George Nelden, b. 1769, may be related, but not necessarily father and son.John did have a son named George, but there may have been more than one George Neldon of about the same age.