There were others long wing Cubs. For instance the J-4 Cub Coupe which was fat fuselage side by side two place Cub with a the 65 and this I believe was the first longwing Cub to have a pressure cowl. Then there was the J-5 which was a slightly widened fuselage with a bench for two in the rear and a single pilot up front it was a 75 horse bird with the eyebrow cooling like the J-3. The J-5 after the changover to the PA model numbers became the PA-12 with larger engines and a full pressure cowl.
The first two place tandem long wing Cub to Acquire the full pressure cowl was the PA-11 and I think they called it the Cub Cruzer (spelling) no flaps then came the P-18 Super cub.
Of course concurrently after the war of course came the short wing pipers.
John