Just throwing this in the mix as maybe connected?
All born Ireland
St Mary Magdalen Bermondsey
1871 - Piece 630, Folio 117, Page number 18
Boyle V Simpson 23 Head - Doctor
Teresa F Simpson 21 Wife
Louisa M Simpson 0 (15 days) Daughter
Jane Walsh 52 Mother-in-law
Bridget Walsh 16 Daughter-in- Law (sister in law?) same age as 1901 census
Marriage
Name Teresa Frances Walsh - Boyle Valentine Simpson same page
Date of Registration 1870
Registration district Dublin North, Ireland
Volume 7
Page number 503
FHL Film Number 101251
Simpson couple must have returned to Ireland
Name Boyle Charles Simpson
Birth Date 3 Aug 1872
Birth Place North City No1, City of Dublin, Ireland
Baptism Place North City No1, City of Dublin, Ireland
Father Boyle Valentine Simpson
Mother Teresa Frances Walsh
FHL Film Number 0255857
Snippet in the Belfast Newsletter
Name Son Simpson
Gender Male
Record Type Birth
Birth Date 3 Aug 1872
Birth Place Dublin, Ireland
Father Dr Boyle V Simpson
Mother Simpson
Publication Date 6 Aug 1872
Register
Name Charles Boyle Simpson
Baptism Age 0
Event Type Baptism
Birth Date 3 Aug 1872
Baptism Date 9 Aug 1872
Baptism Place St Michan's, Dublin city, Dublin, Ireland
Residence Place 23 Berkley Road
Parish Variants North Anne St., St. Michan's, Nth. Anne Street
Diocese Dublin
Father Boyle Valentina Simpson
Mother Teresa Walshe
Cas