Pat, Sorry. We need more detail. If you've found her in 1911, you at least know her age & birthplace. Do you have details of their marriage? You comment about two small children suggest they may marry after 1901, in which case Constance would normally be with her parents in that census. Otherwise, you'd have to pay for a marriage certificate through GRO. If you don't have details, you should be able to find the marriage on FreeBMD. It's just as easy for you to do as me, and you'll enjoy the discovery. Peter in Sydney