Thank you very much for your response. I can tell from the ancestry.co.uk records (marriages etc.) that these are duplicates. I feel it would be too much of a coincidence for another Gladys and Gertrude to have married the same men (known to me as uncles). Although I can find the baptism records, at the time of writing I cannot find any birth records for either family for these two children. However the baptism records show the dob, so I will go from there. Thanks again.