Ellen
Is it dorothy's birth you are wanting to find out for sure,
i will call into bmd office and see if she is recorded there, the manxbmd on line does not belong to bmd so not all is on there
i am a cain and my great grandfather [ on my mam's side of cain ] was john henry cain and also lived in hope street number 23, i have info on comish in bride but not the ones you seek at least i dont think so, but looking at record in bmd in person may be best,,,,