Well, I did a survey of all the present bikes on the lab. I'm not quite done, but I found some interesting things.
Not all the bikes are Worksman. Lots of Mohawk, Emory, and Atlas, too. Huffy, Schwinn, and other "cruisers," that I couldn't identify.
There were a half dozen mountain bikes, but only one of those are being used. The others are all in a state of disrepair. One was modified so that the rear derailer is gone, but it has flats and isn't being used.
All the bikes are rusty. Worksman were in just as bad of shape as Emory and Mohawk. Those three appeared to be the best made bikes. More to follow.