Even though she died in Perthshire, the thought of a marriage elsewhere had occured to me, but nothing in showed up in IGI. I suppose it could have been an irregular marriage. If the census entry I found for 1891 is the right couple, she was 31 years younger than her 2nd husband so they might not have bothered with the formalities
Point taken Russell,
I suppose, because of what we are doing, it irks a bit that accepted practices like the "by habit and repute" marriages meant that our forebears didn't leave us the means of finding out about them.
On a positive note; Makes our successes even more exciting