Here is a link to a very good site regarding American Bicycles.
http://www.theliberator.be/militarybicycles.htm
This excellent article from BSA Museum shows BSA produced lots of standard civilian style bikes for the military as did Malvern Star - they were not all one of the 70,000 folding bikes they also produced.
https://bsamuseum.wordpress.com/1944...tary-roadster/