Complex sentence: Dr. Andrew Turnbull (1718--1792) was a British Consul at Smyrna, who organized the largest attempt at British colonization in the New World by founding New Smyrna, Florida, named in honor of his wife's birthplace.
Split into simpler sentences: Dr. Andrew Turnbull (1718--1792) was a British Consul at Smyrna. He organized the largest attempt at British colonization in the New World by founding New Smyrna, Florida, named in honor of his wife's birthplace.