Just to follow-up here on a few interesting points; It may be coincidence, but the wheels we have on the Ranch Wagon are chrome reverse ( to DLR's comment) and the wheels on my 56 Customline are Cragers. Guess it's time to address those bearings SOON!
Also, I would often ride with my wife when she took the Ranch Wagon out, but not every time. I never heard any noise or felt any vibration until the day that bearing failed when we were on our way to breakfast. We turned the car around and limped it home less then 1/4 mile. There was nothing left of it except for the center which I had to remove from the spindle shaft with a hammer and punch. I followed the steps in the video that was posted, but I think my mistake was not using high temperature wheelbearing grease for disk brakes.
Finally, when I went to install the new races in the rotor hub, the race spun in the seated position so it appears the rotor was trashed too. I'm getting a new one from NAPA today. Then I will be doing the other of the car. I can see grease on the back side of the wheel, but the rotor still turns true with no wobble so I am hoping it is okay.
Ron Lane, Meridian, ID