I was very excited to get your response to my message. I don't know of a Dina Hollman that came to Nebraska but have found a Dina Hollman who came with her parents and two sisters in 1832 to one of the New England states (Massachusetts, I think). I am fairly sure she was related to my Hollman family.
There was a Anna Margaretha Caroline Hollman who married an August Heinrich Orthman in Germany and they came to the states in the early 1860's to New Jersey and then on to Nebraska befor 1870. She was a sister to my greatgreatgrandfather, Herman Hollman.
I know that the ancestors that I have found were christened in Mariendrebber.
I would love to find more about the family in Germany. I would be very grateful for whatever information you have or any help in finding someone who can help.
My email is firstname.lastname@example.org