Thank you to Diane and Adrian. It appears that the Death Certificate issued in 1855 may have been in error?? as a newspaper report places the death in late May 1853. Highly unlikely that two people with the name William Knight were killed on the same train track some two years apart. Now obtaining the Certificate for 1853. Your help in breaking down this wall is very much appreciated. John in still hot and very dry (no rain for three months) Mandurah Western Australia