I checked the data I have on the Badois, no mention of Galbraith that you asked about; However - to capture her data in Family Historian, I had recorded the housekeeper as tho a spouse of Frank, and whilst checking the Galbraith idea, I noticed several hints for Frank.
One, for the US 12 Census, for Second Avenue, Manhattan district of New York, 13 July 1900, lines 76-79, gives a Francis Howard as father of a boy, Frances (11) and girl, Francis (15) Howard (all born in Ireland) but he as a father of 4 children (2 had died) BUT his wife Annie , had no children and came from Italy. Now this suggests she was a "2nd" wife he had married when the 1st one died or left,
Now the intriguing thought is: Did that Francis Howard dump his Italian wife and children to come back to the UK;
"Winchester" Frank had no children with him in 1901 or 1910 BUT he called my mother Frances, and her brother Francis (+ other first names) - That seems such a coincidence ! Finding a later Census or BMD record for "NY" Francis Howard in the US would dispel this line of thought but not familiar with US data sources yet. Obversely an immigration record for return to the UK in 1900 would strengthen the coincidence if not be a proof. Luckily I took a PDF snapshot of the Census page because MyH is not re-offering it (for a link), any way I can send you it, if you want it?