[JMS] Millen's middle initial?

[JAMES HANLON]

Do any of you folks happen to know what Jim Millen's middle initial was? 
I'm corresponding with John King, k5pwg, who has acquired HRO s/n D35, one 
of the very first batch of HRO's to be built and sold.  It originally 
belonged to Irv Weston, an FCC Engineer, and then passed on to another FCC 
Engineer who sold it to John.  His coil set has a notation "Aligned 3/3/43" 
and initialed "JLM."  Could this have been done by Jim Millen?

Jim Hanlon, W8KGI