Bill,
I have a few questions if you don't mind. I had never seen the web site you pointed to, shame that, I really enjoyed reading it once you pointed to it. That is an excellent source.
When I read the page on the Howard C. Lacker crew I notice the mention of special passengers on 7 missions.
The VI passengers are easy enough to understand. And the RCM passengers also, although it appears the aircraft used for that mission was not a specifically configured aircraft.
But what are the YRO passengers? The Y Radio Operators? Were these MI8?
I have acquired the majority of the RCM gear that would have been in use in late 1944 / early 1945. I am in the process of building a working example of a suite of RCM gear, although more oriented towards the Ferret birds, and acquisition / analysis, than the regular bombers and protection.
Thanks,
T!