Here I am on August 7, 1949, slightly over a month old, in a "Johnny Jump Up". (At our house at 144 Purchase Street in New Bedford).
The 1950 BLOCK SHOP catalog shows an advertisement for a Johnny Jump Up and it reads:
"JOHNNY JUMP UP. This is new, and the finest exerciser we know for fast-growing Johnnie and/or Janie. Just a slight push with the toes and the bouncing, rollicking fun starts. It is a strong canvas seat suspended from a special spring which is extra sturdy yet which responds readily to the slightest movement. Absolutely safe and ready to hang in any wooden door frame. Age range: 4 months to walking. $3.00. Shipping weight 2 1/2 pounds".
