Was in Edinburg last year and happened to ask an old antique dealer about gun shops etc. He lamented how there used to five in one street alone, but "all gone now". I get the impression the country has been pretty well picked over for old guns etc.

Henry did quite a bit of work for the WD in WWI and records of that would be of interest to some of us, if you ever come across any.

Where is the boy buried who was killed accidentally? Is there more than one Henry family stone in that cemetary or are some in others? It looks typically neglected.

Perhaps your best bet would be to organize a family reunion and get people talking with the aid of a wee dram or two.