I did it back in the early 40 with my family when we left upper state N.Y. to go to California.
I don't remember if the inter state Highways were completed then.
That was when you had to have Rationing stamps to by gas.
I think I am dating my self.
The A.A.A. insurance Co. has a map of where the old 66 High Way is located.
When I came across the Country they had a lot of old towns along the way and there were a lot of the old Burma Shave sings along the Highway to look fore ward to as we traveled.
Just a thought.