What resources do you have for researching the history of Edward, John, Mary Lucretia, and James Creighton?
We have a fairly large clipping file on the Creightons (articles from the Creighton alumni magazine, various local periodicals, photocopies from McShane Creighton's genealogical charts of the Creighton family, etc.); some published works--see our online catalog, for example:
as well as some possibly pertinent works about Creighton University; and naturally the family are all mentioned in greater or lesser detail in the various histories of Omaha (and Nebraska) in our catalog. The diary of Edward Creighton's assistant on the trans-continental telegraph line was published a couple of years ago and might be worth looking at, too. http://omaha.bibliocommons.com/item/show/1496208060_first_telegraph_line_across_the_continent
Another good resource is the digital database of the Omaha World Herald (1885-1983) which is accessible to OPL cardholders (it is also part of the paid GenealogyBank subscripton, if you or your local library has that); and the Omaha Daily Bee, which is available free (so far from 1873 to 1916) at the Library of Congress's Chronicling America digitized newspaper project. I'm sure you will find many mentions of the Creightons there.