Thomas Walters does not appear on any censuses.  I cannot be certain of where and when he was born although I suspect it was about 1826 in Carmarthen and I believe his family moved soon afterwards to Swansea.  I have been unable to find a death certificate.  Known facts:  17.1.1854 Chief Officer of Appleton; 3.9.1860 Chief Officer of Frederica; 15.7.78 on daughter's marriage certificate is listed as Master Mariner (deceased); 1892 on wife's death certificate, she is listed as "wife of (deceased) Mariner (Mate) Merchant Service".  The website Swansea Mariners lists a Thomas Walters with a Mates Certificate Number 69091 who had been a member of the crews of Jessie Stowe, Theta, Anna, America, Dinorah, Native Pearl and Isabella.  There are two newspaper articles in the Cambrian Journal which refer to:  Thomas Walters, mate, on Theta (assaulted by the Captain) and another on the loss of the Barque Guayacan (Thomas Walters gave evidence).  Furthermore the Swansea Mariners and Welsh Mariners websites list a Thomas Walters falling overboard from the Isabella on Christmas Day 1874.  There are a number of Thomas Walters and I am anxious to make sure that I have the correct information for my ancestor.  Can anyone help please?