That particular group of people does get somewhat confusing :)
Janet Craig Lennox (twin) was the daughter of David Lennox and Elizabeth Begg.
birth: 24 Jul 1855, Straiton, Ayrshire
death: 12 Oct 1934, Alloway, Ayrshire.
married: 27 Dec 1877, Maybole, Ayrshire
She was wife #2 to
James Arthur (parents William Arthur and Helen Ferguson)
christ: 27 Sep 1829, Cockpen, Midlothian
died: 3 Oct 1915, Alloway, Ayrshire
They had 8 children that I know of.
I'm not entirely sure where Hugh Begg and Margaret Lennox tie into my family but if I find out anything I 'll let you know.
Carol