The very first name that came to my mind was Jasper Maskelyne. He led British camouflage efforts during WWII, and sure enough, while they don't come right out and say it, the mention of him studying British work makes me think that Ohmer must have worked with him.
Related to that: during WWII the US commissioned a fleet of inflatable decoy "tanks" https://ghostarmy.com/bio/f/Equipment/418. They were built by the Patten Company (no relation to George S. Patton, different spelling), and in the early 2000s I rebuilt the Patten Company's website. They have since removed that historical footnote from their site but you can probably find it on the Internet Archive.
