Roud includes indexes for 1835 (Nafis & Cornish, New York/ John B Perry, Philadelphia) and c.1850 (Locke, Boston); also -partially- The Negro Forget Me Not Songster (Turner & Fisher, Boston, 1845) which was a different series; largely Minstrel songs. My copy of FMN is the 1835 edition (or a later printing of it) with 256 pages; I've seen a partial contents listing for another, possibly earlier, edition with a variant selection of songs, but I can't find any record I may have made of it.