I actually really doubt that you'll get a better result from a professional genealogist than from the folk on here, who combine a great deal of experience, diligence and lateral thinking with a stubborn certainty that "it'll do... near enough" simply won't do!! Keep on slogging!
(At least you haven't the "John Smith" issue that bedevilled me for a few years on OH's ancestry - a "lady" had a child, probably wasn't married to the father, although the child took the father's surname, and both lady and child vanished! It eventually emerged, after years of dogged hunting, that child and Mum were living with a John Smith of their own.... only he was really a Mr Tomlinson, who had abandoned his wife and parents about 1870 to hop off with her, to become Mr & Mrs Smith until he finally died, when his younger son, born to them long after the son she brought to the marriage, had him buried under his real name and surname, and started to use that name himself, for the rest of his life.
Her son then wobbled between her real surname, Johnson, and the surname of his real father, for decades before he made up his mind, and his own children show evidence of use of both surnames!! Grrr!
Good luck!
