Information on the hill climb fatalities

Hello,

As far as I know, there have been two fatalities in the PA hillclimbs in their entire history.

From what I understand, a Corvette river passed at at Weatherly and another Corvette driver passed away at duryea (or was it Pagoda).

Can anyone answer and (or all) of these questions:

1. What years did these accidents happen?

2. What class were these cars being running in?

3. Did the car's have roll bars or roll cages?

4. How many hills or how many years of climbing did the driver's have experience with?

5. What kind of times were the cars posting?

Please help

Thank you