Thoreau on Boggers

Someone who practices a trade on the premises of the customer.

"The chickens, which had also taken shelter here from the rain, talked about the room like members of the family, too humanized methought to roast well. They stood and looked in my eye or pecked at my shoe significantly. Meanwhile my host told me his story, how hard he worked 'bogging' for a neighboring farmer, turning up a meadow with a spade or bog hoe at the rate of ten dollars an acre and the use of the land with manure for one year, and his little broad-faced son worked cheerfully at his father's side the while, not knowing how poor a bargain the latter had made."

Henry David Thoreau, Walden (1854).