Firewall Gaskets

Hey guys,
I picked up a firewall gasket set a few weeks back. Today I was able to go out and put them in service.
One problem, I can't identify all the pieces.



Here's what I figured ...
A = unknown
B = master cylinder
C = heater motor
D = unknown
E = steering column
F = unknown - accelerator?
G = electrical
H = air conditioner

If you can help, I sure would appreciate it.
Thanks,
Steve