Thanks Ev:
So it appears clear that Caroline Martin -- b.c. 1908, Campbeltown, Argyll, SCO, d. 1982, Campbeltown; daughter of John Martin, b. 1884, Campbeltown; grandaughter of Caroline (Helen) Martin, nee Stewart -- first married Malcolm McInnes, b. 1902, Campbeltown, in 1927, Campbeltown, and he died at age 35 in 1937, Campbeltown.
Then Caroline (Carrie) married George Leslie Dixon, b.c. 1914, in 1941, Campbeltown. George died at age 82 in 1996, in Lochgilphead, Argyll.
No evidence of any issue from either spouse.