Yes I put a rumble seat in my 31 deluxe coupe, car was all pieces when I started the restoration in 1981. There has been 4 generations of our family that have ridden in the rumble seat, including our 3 sons , then when married ,years ago. We have an ice cream shop about 5 miles away with a beautiful drive along a lake ,that is a route that we haven driven for years, with various family and friends enjoying the ride at their request . We have many pictures of kids over the years,in the rumble seat , anticipating the ride.
As for travelling ,we leave the seat cushion at home for suitcases etc on the floor . I also installed the roll down window back in the 1980’s , love it.
Don S