Complex sentence: By 1901 the settlement had grown to 18 houses, but most of the residents were moved to the mainland during World War II. The last permanent resident, a Norwegian artist, moved off in 2000.
Split into simpler sentences: By 1901 the settlement had grown to 18 houses. Most of the residents were moved to the mainland during World War II. The last permanent resident, a Norwegian artist, moved off in 2000.