I've now got some certificates for the Sealeaf's with some addresses on so could I take you up on your kind offer of looking the addresses up in the 1871 census you have on disc please?
It appears that a Michael Sealiff (presumably our Charles Michael) married a Johanna Brain in Liverpool in 1862. He was living at Gore Street then, and she was living at Pitt street). His parents names are given as Michael and Clara Sealeaf from Finland. I've been looking on the IGI and although I can't find a birth record for him, I did find a birth in 1831 for a Clara Sofia Sjoblad [the Finnish form of Sealeaf] in a place called Kristinestad in Finland to parents Michel and and Clara Sjoblad. Charles Michael (who was born about 1832 according to the census) and Johanna named their first child (who died aged 10 months) Clara and their last child (who is my mother's grandmother) Clara Sophia. So I think this must be his family. Johanna's maiden name is given as Brain on the marriage certificate and her place of birth as County Wexford in Ireland. On other certificates her maiden name is given as Breen or Green. It seems there were a number of Breen's living in County Wexford in the second half of the 19th century, so I think the Brain and the Green transcription can probably put down to the mixing of Liverpool/Irish/Finnish dialects. I never knew Liverpool was so cosmopolitan at that time. Unfortunately I can't find Johanna Breen or Charles/Michael Sealeaf on the 1861 census in Liverpool or elsewhere.
The other addresses I have for them are:
1862 (mariage): (ohanna was living at Pitt Street, Michael/Charles Michael was living at Gore Street
1866 (death of first child, Clar, I can't find her birth): 119 Hopwood Street (St. Martin’s, Liverpool
1868 (birth of next child, Charles Michael Sealeaf): 4 Grayson Street (St Thomas’, Liverpool)
1876 (birth of last child, Clara Sophia): 34 Paget Street (St Martin’s, Liverpool)
It seems they moved around a bit. I obviously need to order some of the certificates for the children born between 1868 and 1876. They had a child called Anthony in Liverpool in about 1871, then another called John in 1873 in Ireland, so it is just possible that they were in Ireland at the time of the 1871 census.
With all best wishes and thanks,