Just a note to point out a Comment left on October 9, 2017 to the post of February 24, 2015, "Unplaced: Aaron W. Brewer." The comment suggestions additional children for the couple, Aaron Brewer and Polly McFarland. These children are not found on the latest (and last) edition of the Brouwer Genealogy Database.
Although we know, through Y-DNA testing of a descendant, that Aaron W. Brewer is a direct descendant of Jan Brouwer of Flatlands, L. I., we continued to be stymied in discovering his complete ancestry back to Jan Brouwer. Any additional insight is welcome.