During his many years at Bethel, Don has from time to time traveled to other lands to serve those working in the branch offices and in the missionary field.
नंतर, १९५८ मध्ये, जोएलला पुन्हा एकदा मॅरीसोबत बेथेल कुटुंबाचा सदस्य होण्याकरता आमंत्रण मिळाले.