I think your husband and I share the same great great grandfather. His son, James Sinclair Coutts seems to have returned to Scotland in the early 1900s. He had two sons, James and David, who were left orphaned as young boys and were fostered to a family in the Highlands of Scotland. James in turn had 3 sons, the eldest also James - they clearly had little imagination when it came to names, was my father.
If you are still tracing this line let me know. I have some information that might be of interest.