I have someone that may help, though I can not find a George Washington listed as a son.
I have a Nelson Hoffman, b 8 Dec 1792 m 29 Aug 1818, d 3 Nov 1840. Married Elizabeth TEMPLIN, b 4 Jul 1798 d 9 Apr 1892. She married a Henry Rohr in 1859.
Nelson's parents were George W Hoffman and Eleanor Phillips. Elizabeth's parents were Richard Templin and Eve Lauffer.
Nelson and Elizabeth had the following children:
Lemuel 1819
Oliver 1821
Margaret 1823
Allen 1828
Ellen 1830
Josephine 1830
John 1832
Prudence 1834
Lucinda Rebecca 1836
George W And Eleanor also had a son named George Washington, but he was born in 1811.
I don't know if that helps or not, but it might do something.