The sheet music for COCKLES & MUSSELS, by J. B. Geoghegan, published in London in 1876, can be seen at The British Library's Online Gallery of Victorian Popular Music.

The lyrics are those that were posted above, by Fergie on 04 Jun 12 - 08:04 PM.

Who knew that this resource existed? Not I, until recently. It seems to contain around 200 pieces of music, both songs and tunes, with quadrilles making up most of the latter. Very few of them are familiar enough for me to even recognize the titles. I will be posting links to the ones that seem relevant to this forum.