taumac,
The cutting ends of your chisels are ground like wood chisels... so wood chisels they are. And, the striking ends appear to have been struck by a metal hammer, not a wooden or leather mallet. So it also appears they were used for rough or crude work... perhaps demolition and/or remodeling.
Mayhew is a great company with great striking tools, and are best known for their hammers, mallets, chisels, stamps, punches, scrapers, prybars, and alignment tools. I've got a fair amount of their tools in my tool chest, and wouldn't trade them for any other brand.