Have you tried posting your DNA markers info of the GRUBB - BRIDGEWATER matching to the web site,
www.ysearch.org since then.
Was curious who else, other surnames that you may match with?
Shropshire is also listed on that site as a match to my MILLS descendant.
Again, just curious.
Pat
cw
www.familytreedna.com under MILLS
category 600 and 600a
haplo group I 2 a
P 37 - 2
Note: There is a GRUBB - MILLS link on other data files, other gene sites, of either North Carolina and Kentucky, USA.i.e. Samuel GRUBB and Esther MILLS.