Also, I've been (very slowly) working on an article on the Ruskin Heights outbreak so I figured I'd share a few preliminary things. Here's the full damage path with all of the fatalities plotted, and a closeup of the area between Martin City and Raytown where most of the deaths occurred:
The actual path was certainly wider in some areas, but I tend to err on the conservative side. Anyway, here's the Concordia, KS F4. The path plotted here is almost exactly 54 miles; Grazulis had the tornado dissipating 3mi NE of Morrowville, but there's continuous damage going several miles further, and a local sheriff reported watching the tornado follow him up the highway and cross in front of him near the end of the path here. Possible it may have been a tornado family, but there's no place I can definitively pinpoint a break.
The Harris-Rush City, MN F4 gets almost entirely overshadowed for obvious reasons, but its narrow core was pretty violent. The path here is about 10.4 miles with a max width of just under a quarter-mile, but the most intense damage may have only been like 50-100 yards:
I was a bit surprised to learn there were apparently multiple photos taken of this tornado, but I've only been able to find one so far:
The Fremont-Van Buren F4 path isn't finalized yet but it's roughly accurate and all seven deaths are plotted. Length is ~24.8 miles:
The Desloge, MO F3 (which I just realized I forgot to mark two of the deaths) with a path of ~30.5 miles. Not 100% certain the last couple of miles are actually tornado damage though, still working on that:
The Brownbranch-Squires, MO F2 (rated F3 by Grazulis, which is much more appropriate IMO). The path here is 33 miles:
There was a fairly significant tornado family in SE Nebraska covering a combined 74 miles, the last of which was photographed by multiple people in and around Lincoln: