Wie,
I am so very sorry not to have replied sooner to your post, but I only noticed it this morning after a long break from ancestry hunting! How amazing that we may be related, and I had no idea that Robert Swan Smith had been in the Merchant Navy, although we were up in Greenock last summer, and will be again next year, and I did know about Mary Jane and him living there. Also I had no idea he made ships in bottles!
I am the granddaughter of Robert's first son, Edward. I hope you find this message so that we can exchange news further. Very best wishes to you, Islay.