To get technical, John hardy was played on a diatonic one row G-box, played "backwards" in the cajun style in D. I havent got Sukey Jump and Cornbread Rough to hand, so I'm not sure if they are on the same machine. From memory I would say that Sukey Jump was played on the same sort of box, but not with all the stops out(hence a thinner sound which people might confuse with a concertina).
Windjammer I've never heard. Is that currently available on CD?