You might be able to find the information you seek in a book called Autumn Leaves for Family Trees, by a retired Civil War general named Theophilus Rodenbough, published in the 1880s. There is supposedly a copy in the Library of Congress, and I looked at one in the library of the Philadelphia Historical Society. I don't know were else to find it. The book concerns the Rodeb*ghs of which you wrote. It may also have information on the Rockefellars; though, I am not sure.