Now, is that a strange post title or what?
Well, a bit of research finds "the etymology of daisy ham" in the Dictionary of American Regional English, findable via Google books.
It seems Daisy wasn't a brand name, although it was coined by an Armour employee after watching the boneless picnic ham rolls being made in Boston's Faneuil Hall. He thought a cross section of the roll looked like a daisy. I imagine this was because the ham was not ground but instead was simply boned and shaped into a roll.
In the 1970s, daisy hams were commonly in Southern New England grocery stores. They weighed about two to five pounds and were three to four inches in diameter. They were wrapped in a plastic tube. All you had to do to fix one was open up the plastic, dump the ham into a pot, cover it with water, and boil.
It was the perfect meat for my earliest entertaining. It was cheap. It was boiled, a culinary talent I had mastered at that point. It was boneless so you didn't need a good knife or carving skills to serve it.
Click here for how to cook a picnic ham AKA smoked Boston butt AKA shoulder ham.