Complex sentence: After weeks of interviewing people who had lived in Livermore all their lives, he wrote an article entitled "Light Bulb May Be World's Oldest", which was published in the "Tri-Valley Herald".
Split into simpler sentences: After weeks of interviewing numerous people who had lived in Livermore all their lives he wrote an article entitled "Light Bulb May Be World's Oldest". The article was published in the "Tri-Valley Herald".