Altogether he spent six months in the Pacific, made fifty combat missions, put in 178 combat hours, and returned to Connecticut with complete reports on fighter planes, their performance, and their problems.
Yes, but all that was a year after Yamamoto bit the dust. Lindbergh did help make signicant improvements to the P-38’s range which contributed significantly to the war effort, but reaching Bougainville was not his doing. That was accomplished by using external, jettisonable, wing tanks.
IIRC, before he was attached to MacArthur’s forces in New Guinea, he was touring front line units, including the unit which got Yamamoto, and I recall reading the testimony of a member of the unit stating that Lindbergh was instrumental in their success in getting Yamamoto (but I can’t remember where I read it).