Complex sentence: Born in New York City, he was a son of George Norton Miller, Sr. (July 27,1805-March 10,1891) and Caroline Tucker Chase (born 1831), who were married on October 9,1855 in Boston, Massachusetts.
Split into simpler sentences: Born in New York City, he was a son of George Norton Miller, Sr. (July 27,1805-March 10,1891) and Caroline Tucker Chase (born 1831). George and Caroline were married on October 9,1855 in Boston, Massachusetts.