Trying to identify very old harmonium

[Guest]

I have a very old (150 to 200+) year old harmonium. I am trying to find out more about its maker and value (which I would not imagine to be so much.) This is because the reading that I have done on these things states that they are bought primarily for decoration. It is very plain in design being made to service a preacher traveling on horseback between towns without the means to build their own churches. What I want to know is if anyone here can tell me where to look for more information about the manufacture. A simple Google search of the name on a small brass plate has told me nothing. The plate says:

L.H.Jones&Co.
E.W. Wade
Boston

I am guessing that this was a very small shop that may be hard to find information on. Where would be a good place to look next?

Thank you, John

[Westminster]

Two melodians (i.e. single feeder vacuum) are listed on the reed organ site as by JONES, CARPENTER & WOODS c. 1854 and 1856. Both are rosewood veneer. No hit for Wade.
http://www.reedsoc.org/

[Guest]

At the mention of veneer I am reminded that I saw something new to me in the finish if this instrument. That the veneer top is actually made from three separate pieces, perhaps 3 1/2" x 6 or 8". I am guessing that the production of wider veneers was difficult or impossible long ago. There are things we take for granted today like veneer lumber 8' wide for the production of furniture and the like that our forbearer's could have only dreamed of. I am guessing the reason for their inclusion was the nature of the piece. It is a removable cover for some bellows assembly and the piece is perhaps 1/4 to 3/8th's of an inch thick which perhaps, being so thin made it susceptible to cracking over time, calling for a change of grain direction.