The TIGHE SURNAME DNA study is an ongoing project open to any male descendant with the TIGHE, McTIGHE and O'TIGHE surname. Our objective is to match up individuals or families who share a common male ancestor with the TIGHE, MCTIGHE and O'TIGHE surname. A TIGHE, McTIGHE and O'TIGHE database will be maintained to match future TIGHE, McTIGHE and O'TIGHE participants. Current participants' results and pedigrees can be viewed on our website. Please contact me for any additional information TLTIGHE@aol.com