Hello all, I'm back!
Firstly, many thanks for all your help, it was invaluable! As always...
whatsinaname is excellent!
Elizabeth Falconer Livingstone, b.1888 is now nailed down, turns out to be a cousin of my Grandfather, not a niece, but close enough!
She emigrated to the US on board the Columbia from Glasgow, arriving at Ellis Island Oct. 21st, 1909. She married a William Donaldson McCue in Los Angeles on Oct. 20th, 1921. No immigration record for him, as yet.
Sadly, said William was shot to death* on Oct. 19th, 1922. The day before their first wedding anniversary
I'll keep hunting around for more information on them both, possible Eliz. Livingston as a domestic servant, 43, in Boston in the 1930 US census...
At the moment, though, it looks as if that line stops at Elizabeth and William. Plenty of his family to be going on with.
*Seems William was murdered by one Aurelio Pompa, (21 at the time) after an argument over Pompa using McCue's tools without permission, on the new LA Post Office building, Pompa being Williams labourer. Mentioned in a book called !Pobre Rasa!, page 150 and 109. He received the death sentence,and was executed. (7th Mar. 1924)
The book was written from a Mexican standpoint, and apparently Pompa was "elevated to legendary status for standing up to him". Also mentioned in the book Testimonio: A Documentary History of the Mexican American Struggle for Civil Rights.
Sad little story...