Complex sentence: Townsend's superiors already showed signs of unease that he had adopted local practices, clothing, and language.DDD DDD Unmoved by their concerns, Townsend gradually formulated his plan and ideology which would later shape SIL.
Split into simpler sentences: Townsend's superiors already showed signs of unease that he had adopted local practices, clothing, and language. Colby and Dennet, 43 Unmoved by their concerns, Townsend gradually formulated his plan and ideology which would later shape SIL.