I have The Book of Dow, and it gives John Dow as a farmer in Coventry CT. He was b. 16 Dec 1766, and d. ae 84. He m. Clarrissa Guile, dau of Samuel and Hannah (Newcomb), 6th in descent from Gov. William Bradford. Children were Diantha b. 7 Sep 1800, Almira b. 4 Aug 1802, John Nelson b, 5 Feb 1805, Silas Newcomb b, 25 Apr 1810. Bookalso has the Dow ancestry for John.
Ruth Dow b. 1749 (Plaistow has 1732) When Plaistow separated from Haverhill, records were copied and many errors made. These records are therefore unreliable, Ruth m, 1770 Nathan Gile, cooper of Plaistow, son of Daniel and Joanna (Heath); one son. Ruth was dau of Timothy Dow and Judith Worthen. Book has their Dow ancestry.