The information I have on Judith comes from The Book of Dow - and I have no independent verification of the line. It has Judithas dau. of Joseph Dow and Judith Butman/Bootman.
Says she m. 11 Jun 1747, John Bond, a physician and original incorporator of Hampstead. It lists 6 children - varies slightly from what you have given - but does have Jonathan b. 6 Aug 1776; m. Abigail Rogers; 2 children. It traces Judith back to Thomas Dow, an original grantee of Newbury MA, 1639.