Complex sentence: Much of McHenry's scholarly writing relates to process studies and the philosophy of Alfred North Whitehead, who thought his philosophy could be understood as a transformation of absolute idealism in terms of the realities of process, and his intellectual colleagues, including Charles Hartshorne.
Split into simpler sentences: Much of McHenry's scholarly writing relates to the philosophy of Alfred North Whitehead and process studies. Whitehead thought his philosophy could be understood as a transformation of absolute idealism in terms of the realities of process, and his intellectual colleagues, including Charles Hartshorne.