Complex sentence: During his tenure of Inspector of Lighthouses, Babcock was the chief engineer overseeing plans for the construction of Mosquito Inlet Lighthouse until 1884, when he drowned off Mosquito Inlet in Daytona Beach, Florida.
Split into simpler sentences: During his tenure, Babcock was the chief engineer overseeing plans for the construction of Mosquito Inlet Lighthouse. He died in 1884 when he drowned off Mosquito Inlet in Daytona Beach, Florida.