GuestQ: a late response, but clarification. The cover for the Christy Minstrels version of 1848 is also reproduced with the music in the "Stephen Foster Sesquicentennial Song Book" (1976), but looking back at 'Levy', your request for the music & lyric pages is answered there. At the end of the details shown for the cover page you're searching it refers to the music being the same as that shown at "Box 068 Item 037"
It was often a case that the printing plates would remain the same, but be printed with a new cover for different performers/performances

Nigel