Origin of "Lazy Susan" ...

I’m an architect, and I happened to be thumbing through a book on cabinet details the other day. I’ve always heard of Lazy Susans and I know what they are, but a questioned popped into mind that wouldn’t go away. What is the origin of the term “Lazy Susan”? Did the “inventor” have a wife/girlfriend/sister/mother named Susan who wouldn’t lift a finger to reach deep into cabinets? Everyone at work just looked at me weird when I asked them. Obviously they didn’t know. Can anyone help me out?

Charles Funk in “Horse Feathers” explains that it probably is a derivative from the common phrase dumbwaiter[not the elevator-like device, but a free-standing, circular cabinet which stored condiments, drinks and such] A device that allowed those dining to serve themselves, rather than be waited upon. I believe the name was inserted as a close alliteration of lazy. Maybe the now non-waited-upon felt that servants would become indolent with fewer tasks to perform.

Thanks!