Year Identification

[Jmsmrshl]

There are some bikes in my stable that for the life of me I cannot figure out the years of Was wondering if i could get some help. Any help would be appreciated. Thank You.

Hiawatha Astro Flight S/N WG3608 1 26874(?)

Ranger(on the frame and Badge) S/N SE H18 679(?)

Rollfast American Flightweight S/N B787514

 

[Adamtinkerer]

Hiawatha is '60-'64, a period where codes haven't been decoded successfully. Red and blue bikes are Snyder built, red is '63 at the oldest, which serial # would start with E. Blue may have a reverse year/factory code on the BB if it's '58 or older.