While researching historic children's toys for a workshop I am teaching I found this link to a pdf copy of Hooley's Opera House Songster, (I know, it has NOTHING to do with toys. I'm just very distractable)
Of equal interest to the songs is the number of pages in the back listing songs contained in other songsters.
Mr. Hooley was born in Ireland and raised in England. In 1844 he visited America and entered into a business agreement with E.P. Christy to help manage a minstrel troop. He then formed his own troop, and later opened Niblo's Garden in NY, where he hired Christy as manager, forming the Hooley & Campbell Minstrels. In 1862 he built an opera house in Brooklyn, which was noted to be the only minstrel show open nightly in Brooklyn. He built a larger, very sucessful opera house in Brooklyn as well. In 1865, Hooley's Minstrels played Christy's in baseball, with Christy's winning. In 1867 he moved to Chicago and built Hooley's Opera House, which was destroyed by the Great Fire in 1871. He died in Chicago in 1893.