Here's a video from a newsreel of this race, showing the Garlington (actually flipped three times) & the Kross/Harrison wrecks, along with other random racing footage as well as the finish & Thomas in pitlane:
Aftermath photo of the Alvarez wreck:
As a side note, after this wreck NASCAR mandated roll bars.
Here's some more random assorted footage from the race (including long distance aftermath of the Jim Cook wreck):
If anybody wants to see it, there is an aftermath shot showing Lou's overturned car (nothing gory or anything) at the bottom of this page. As far as I know it's the only shot of that particular car in existence (he only ran it at the Grand National level at his fatal race and the two preceding it at Memphis-Arkansas and Martinsville):
http://stockcar-world.com/SiteV5/Index.php?Page=Histoire.php&IdHistoire=10987
Here's some footage of the '59 race:
Quite a bit of footage (albeit in small snippets) exists of this race, but I think the most interesting piece of footage for me would be this short clip, purely because of its source. It comes from the British Pathe, who were the leading newsreel provider in England at the time of this race. In other words, thanks to the Detroit 250th anniversary celebrations that went along with this event, this race was shown on British newsreels.
The British Pathe, incidentally, has its whole collection of 90,000 (!) newsreel films (from 1896 to the 1970s) online on Youtube and on their own website, and from the searching I've done as far as I can tell this event, and the Langhorne National Open from the same year as this, are the only NASCAR sanctioned events that they have in their collection, and the latter was undoubtedly only shown due to the infamous 60-second wreck which occurred in it. They do however, have footage of a USAC stock-car event from Trenton in 1957, as well as some footage from a couple of pre-war events at Langhorne, and a lot of other racing-related footage.
Here's some silent footage of this race:
