So, my great grandpa died, and I found a bunch of unopened bottles of alcohol.

SO, would anyone happen to know how much the following might be worth?

White Horse Scotch Whisky:
EFG
No. 134834
I can't find a date on it anywhere.

Johnnie Walker Red Label
86.8 Proof - 4/5 Quart
I can't find a date anywhere.

Seagrams V.O. Canadian Whisky
Ones from 1964 and another is from 1965

Any help would be appreciated.