Complex sentence: A short time after he had entered the work of the ministry, he married Miss Janet Dickson, daughter of a respectable farmer in Swinton, to whom he had long been attached, their long marriage lasted until the death of his wife some years later.
Split into simpler sentences: A short time after he had entered the work of the ministry, he married Miss Janet Dickson, daughter of a respectable farmer in Swinton, to whom he had long been attached. Their long marriage lasted until the death of his wife some years later.