A favourite song at Colonial Williamsburg is "Nottingham Ale", which has a good chorus, and goes to a version of "Lilliburlero"--that's in Chappell, page 573, and I think there's a thread on it too some good while ago. There's always things like "Here's to the maiden of bashful fifteen" by Sheridan, and what about Shakespeare? They were still singing some of his stuff then, I think. Also, Drink to me only with thine eyes; Landlord, fill the flowing bowl; Lass of Richmond Hill (which the Williamsburg audience appreciated too when I was there); and The Vicar of Bray, maybe.