Complex sentence: While studying at New Brunswick Theological Seminary in New Jersey, with John Lansing and Samuel Marinus Zwemer, co-founded the Arabian Mission which exists today as the American Mission Hospital of Bahrain.
Split into simpler sentences: While studying at New Brunswick Theological Seminary in New Jersey, with he co-founded the Arabian Mission John Lansing and Samuel Marinus Zwemer. The mission exists today as the American Mission Hospital of Bahrain.