The bible for this type of detective work is the two-volume opus 'A Comedy of Errors' by Michael Whitfield Foster. I have no relationship or connection with the author and thoroughly recommend his work to all genealogists from professionals down to my own level. The author was given unprecedented access to GRO records, and these books summarise his recommendations to the GRO concerning the estimated error content of their records and his recommendations for corrective policies. [ISBNs 0-473-05581-3 and 0-473-07480-X] -- Joe Connell Firefox & Thunderbird portals Sunbelt Vipre Premium protection