The 2nd son of Sebastian WX was Andrew S. Weatherwax b:24 Jan.1796 He married Margaret Hidley and only had one known son who was Michael WX b: 3Mar 1818. This is their only known child. Andrew died 23 May 1876, bur Lutheran cemetery in Brunswick,Rensselaer co NY.
The line of Stephen Y. Weatherwax descends from Andrew Weatherwax 1786-1874 who was the son of Petrus WX (Peter) and wife Catharina Cipperly.
The line of Sebastian WX and Catherine Uline descends from Andrew WX b:1737 and wife Catharina Reisdorf. This is a half brother of Peter WX b:1752. Same father for both but different mothers. I recommend you check "The Palatine Families of New York 1710" by Henry Z Jones,Picton Press. Volume 2 has a full breakout of the first American born Weatherwax's most of whom descend from Andrew Weatherwax 1700-1784 and his two marriages. He produced 19 children all of whom named their children after their 19 siblings for at least 3 generations. My book covering all Weatherwax's 1710-1930 is due out next year 2010 for the 300th anniversary of our families arrival in New York colony.