Who is this lady?

[RJNorton]

Many thanks to Steve Whitlock for sending these images.

Steve writes, "The first attachment is the note from C.K.T. for the provenance of the supposed Lincoln deathbed sheet piece. The 2nd attachment, from the Charles Tuckerman Collection, has a manila envelope down toward the bottom with C.K.T. written on it; however the top of the T is missing a bit, but notice how the letters are all looped together as if in one pen scrawl, and the bottom of that T is like that on the provenance document. Note also on that 2nd attachment, just below the manila envelope, is the supposed signature of C. K. Tuckerman; however that is not his signature, but is the signature written for him by B. S. Forbes in a letter to Abraham Lincoln (see 4th attachment and "for C. C. Tuckerman"). The third attachment has a bona fide signature of C. K. Tuckerman in the upper right-hand corner. The 4th attachment is the 3rd page of a letter written by B. S. Forbes to Abraham Lincoln. The 5th attachment is a photo of Charles Keating Tuckerman."