Both the journal report and the descendant chart for Jan Brouwer have been updated (links found to the right under Notes, Research, Reports). The principal change is that John Rose has been dropped from both documents. The reason for this is that after a review of the current information and evidence that I have for John Rose, I felt it was too speculative to assign him even a "possible" place within the descendants of Jan Brouwer. Previously, he had been suggested as a son of Derck Brouwer (b.1737).
We do know that John Rose is a genetic descendant of Jan Brouwer of Flatlands, L. I. Descendants of John Rose, through a number of his sons, are clearly close relations of numerous descendants of Jan Brouwer, as has been demonstrated by Y-DNA testing (see Jan Brouwer Group DNA Results). However, because we do not yet have enough traditional genealogical data on John Rose, and because the mutation rate and timing found in Y-DNA results is too random to obtain a narrow enough degree of relationship between those who have been tested, to be useful, it is presently not possible to state with a high enough degree of certainty where John Rose may fit in among the Jan Brouwer descendants. More traditional genealogical evidence, on both John Rose, and many of his Brouwer/Brewer cousins, is needed before anything more than a guess can be ventured. In addition, I am of the belief that the current database of Jan Brouwer descendants in the Brewer DNA Project, is just too small to be of use in trying to place any one ancestor. At this time, I strongly believe that it would irresponsible to try and assume even a possible placement for John Rose other then to say that he is a descendant of Jan Brouwer of Flatlands. The previous editions of the above mentioned journal report and descendant chart had the potential to be misleading, even with the stipulation of "possible" attached to John Rose's parental relationship. It was therefore necessary to update the documents.