Complex sentence: On September 25,1834, Selden married Laura Anne Baldwin at Clarkson, and they had three sons and two daughters, among them George Baldwin Selden, who became the first person to be granted a patent for the automobile.
Split into simpler sentences: On September 25,1834, Selden married Laura Anne Baldwin at Clarkson. They would have three sons and two daughters, among them George Baldwin Selden, who became the first person to be granted a patent for the automobile.