There is a site you can do research on trunkshop or something like that. I sold one a few years back did my research there.
I looked here
http://www.brettunsvillage.com/trunks/h ... kersg.html
for you but found no Hawley Murphy brand. Only an H M which is believed to be Herckert & Meisel.
The Hawley Murphy may be the latch manufacturer.
There is also a Pritchard Harrison sticker on the inside. The previous owner acquired it from the old Fairplay Hotel.