Complex sentence: Hugh Smith-Barry (1816-57) reclaimed 1,100 acres from the sea and planted it with belts of fir, establishing a four-acre fruit garden and 15 acre arboretum.
Split into simpler sentences: Hugh Smith-Barry (1816-57), reclaimed 1,100 acres from the sea and planted it with belts of fir. He established a four-acre fruit garden and a 15 acre arboretum.