Of course you should tell the person and give the reason why they are wrong,you will probably not get a reply,I have tried this before,it is a thankless task,I supposed this started some years ago when people used the Latter day Saints site,of course as a fringe religion who are matching names at Salt Lake City the whole process is flawed,this has carried over until today with the many sites available to people and because people want to take short cuts to their history they will accept anything that maybe fits,I find the worst people are people following a female line who marry into your male line,and get things wrong,so when you contact them and they see you are a male from that line,you get very short emails like I know or none at all,they seem to resent that you are a member of that line and not had to marry into it,it is all a bit weird but that is what you get when you have a hobby of finding dead people.
