Hello dsb, many thanks for the posted reply.
I am a descendant of MBS through my mother's side of the family.
It is interesting that Rosa had Charles shown as her father at the time of her wedding in 1887 as I have a copy of MBS's wedding certificate in August 1880when he married Sarah Ann Mitchell. MBS is shown as aged 23 and with the occupation of Gamekeeper but he does not have 'Father's Name & Surname' shown nor 'Rank or Profession of Father'. Neither of the witnesses were Solleys.
Additionally there are no father's details shown on MBS's Birth Certificate either in 1857 where his mother is Susan Becker Solley.
Something odd going on in the late 1800's I think ... ??