hi christopher, calder being an extrememly rare name in Ireland, there was only a handful of calders from Ireland on the Glasgow census. William Calder aged 20, John Calder aged 40 and a John Calder aged 60 on the 1851 census from Glasgow. I thought they may be some link between them with their ages but I havent been able to make a connection between them. William Calder being my relation married Margaret Mcnamee she was a catholic and they brought there kids up as catholics but I now believe Willam calder was a prodestant and its been a mixed marriage making it harder to find their marriage certificate. Thanks,steve.
