I took a nap. I came up with more nostalgia...
1. Kamishibai: a form of storytelling to children like a puppet show. It disappear as TV came into existence in Japan.
Check this site:http://en.wikipedia.org/wiki/Kamishibai
2. Kotatsu: table with warmer inside; it exists today but it's electric. It used to be charcoal.http://en.wikipedia.org/wiki/Kotatsu
3. Hibachi: not the BBQ type. They were beautifully crafted circular vase with ashes and charcoal to heat the house. http://en.wikipedia.org/wiki/Hibachi
4. Yaki Imo: means baked potatos but in the 50's, they came in a bicycle drawn carriage with stove and sweet smelling potatoes, ready to eat. We used to go outside and buy them hot!
5. Dobu: sewage system was still very primitive and these were narrow ditches along the small alleys of Japan's cities. They were called dobu. Really smelled bad and we kids had to be really careful not to fall into them. I can't find anything on Google or Wikipedia.
6. Hino Yojin: People from the fire department would come by in the late evening with lanterns (chochin) and shout from the streets telling residents to be careful with fire and turn off all hibachi, kotatsu and open fire before going to bed. This also disappears with sophisticated phone system. Nothing on Google or Wikipedia either.
7. Unisex Furo (bath). In the 50's, most onsen (hot spring) places still had uni-sex baths. I remember going with my parents to the large bath with other men and women and children. I thought nothing of it.
I also want to recommend two great movies in English based on James Michener's novels. They are "Sayonara" staring Marlon Brando and "Bridge to Toko-Ri" staring William Holden and Grace Kelly. The movies are about Japan in the 50's and you can see the fashion, customs, landscapes, buildings and history.
I'll take more naps or go to sleep to see if I can come up with more.