Complex sentence: Healey was born in Petaluma in Sonoma County, California, and served in World War II as an Air Corps navigator and bombardier, flying in B-26 Martin Marauders in the European Theatre.
Split into simpler sentences: Healey was born in Petaluma in Sonoma County, California. He served in World War II as an Air Corps navigator and bombardier, flying in B-26 Martin Marauders in the European Theatre.