The lives of Reed and Bryant, and Reed's writings, will always be of interest to historians and specialists in the period. It's not surprising that the names of a couple of journalists, however well known in their time, would fall out of the popular consciousness. It's lucky that their story made a good movie (well, an okay movie) and that Beatty wanted to make it. Much less likely that a major studio would venture on the project today, even with a big male star pushing it.
I add my thanks for the article, pherank.