Complex sentence: In 1883, he later moved to St. Albert, Alberta where he opened up a store, one of the first businesses of the settlement; he would operate it until 1903, when he sold the business.
Split into simpler sentences: In 1883, he later moved to St. Albert, Alberta, where he opened up a store, one of the first businesses of the settlement. He would operate it until 1903, when he sold the business.