Unfortunately I do not have any info for Laura or Otis - sorry I could not have helped. But while I am here, you might be interested in a photograph that a cousin of mine sent to me which has, and I am taking this from the back of the photocopy
Hub, Grover, Otis, Louise, Joel, Elizabeth, Laura and Joel Melvin in it. I could send you a printed copy as I have not figured out how to email one correctly yet. If you are interested, please let me know.