Complex sentence: The site of Haines Memorial State Park was donated by the estate of Dr. George B. Haines (1843-1910), a doctor who practiced medicine in Valley Falls, in Cumberland, and was a public health officer there.
Split into simpler sentences: The site of Haines Memorial State Park was donated by the estate of Dr. George B. Haines (1843-1910). Haines was a medical doctor who practiced medicine in Valley Falls, in Cumberland, and was a public health officer there.