Madeline Merchant
An unusual woman named Madeline Gwynne Merchant played a strange role in the Green Fireball affair. Evidently an artistic "free spirit," she lived an outdoor life, traveling, prospecting and writing throughout New Mexico.
Merchant's husband's sister was a secretary in the office of Los Alamos security chief Sidney Newburger, and because of this connection Newburger was well aware of her theories.
Some of Merchant's correspondence can be read here and here.