In the past five years, he has served as interim pastor of the Claremont Presbyterian Church and has worked on funds development with two organizations: Progressive Christians Uniting, an organization centered on social justice issues in southern California, and the American & Foreign Christian Union, which seeks support for American-oriented congregations in Paris, Berlin and Vienna. Opportunity to Serve is a memoir of the years Duggan served as pastor of the American Church in Paris, and Sermons Abroad is a sampling of the sermons he preached during 25 years serving international congregations.