No. 2 is a 1860-1880-ish carte-de-visite copy of a daguerreotype with some vignetting.
No. 1 has a button front, home made dress and unfashionable hair, a common Jenny Lind collar with a bedraggled ribbon. The most remarkable thing is the large square scalloped cut ? jet stone. Impossible to date beyond post 1850. Sample one is the original of the two; sample 2 is the copy; look at the eyes. Are you sure No 1 has not been inked on the posiitive ie itself?