David Stone did work at the Maritime museum in Halifax he is a Friend of mine, He has a Facebook page, I am sure you could get in touch with him through that.
I have some of his CD's if you want any info let me know.
I shall be sharing a beer or two with him next June when I am over in Nova Scotia.
Every year David puts on a show The Halifax Explosion in Story and Song at the maritime museum.

Iain Glover