Not much to add to Earl's and Bobby Bob's detailed contributions.   I have the original sheet music with the lively character portrait of George Leybourne (where did Christopher come in?) on the cover. Kilgarriff's great index ('Sing Us Oneof the Old Songs') credits Leybourne and Lee with the original 1866 version, but nearly all really popular music halls songs (and this was easily the biggest hit of its time) spawned parodies, 'replies' and 'ladies versions' , so different authors and dates will, inevitably, be found.

The version with 'fizz, fizz, fizz' was a rewrite for Cavalcanti's 1944 film of the same name.