Sorry for the delay in replying -
I have located numerous newspapers from all across the country which reported on the wreck. I even found what I believe to be a very good quality video clip of a news report covering the wreck with an eye-witness interview. Unfortunately, there is no audio so I may be looking for someone who can read lips and translate for me. I do not have the newspaper with the photographs you attached, but it appears there may be some similar scenery in the background which would confirn my video clip as being from WD's train wreck.
I myself have been unable to reach any living decendants - my sister did about 18-20 years ago, but that contact info was lost when she passed away in 2001.