Hello Kerry,
this is what i know of your GLOVERs .....
John William GLOVER (1815-1899) was a music teacher, lecturer, and organist at the Pro Cathedral, Dublin, and the Editor of Moore's Irish Aires. He married Catherine WADE (no date), they had children, Ferdinand, Lena, Emilie, Mary (she married James MACKAY), and William Frederick (he married Marion EDWARDS). The famous James M (Jimmy) GLOVER of Drury Lane Theatre was the son of Mary GLOVER & James MACKAY. Marion GLOVER nee EDWARDS was last heard of in Chicago circa 1911 and William Frederick GLOVER died in America or Hawaii circa 1913.
I hope this advances your research somewhat. Good luck.
Robert GLOVER, Australia (no known relationship to the above family)