Politics and activism
Slavick has been involved in religious and secular efforts to advance progressive[[progressivism|causes, mostly opposed to American foreign policy. Slavick served for 23 years as coordinator of Pax Christi Maine, the Catholic and ecumenical peace movement. He is a member of the Elizabeth Madox Roberts Society, Catholic Organizations for Renewal,Veterans for Peace, and on the board of the Association for the Rights of Catholics in the Church. 
His wife, Ursula, served as Portland Teachers’ Association president.[not in citation given] Both are leaders of the Sacred Heart/St.Domnic Church sponsorship of Christ Roi School in Morne Rouge, Haiti.Haiti project.They have six living children and nine grandchildren.[not in citation given] They reside in Portland.
Slavick has published hundreds of articles and numerous letters on social justice and peace subjects in state and national publications. His scholarly writing, including DuBose Heyward (Twayne), focuses on modern Southern fiction. He organized the Downeast Southern Renascence Conference in 1978 and the Elizabeth Madox Roberts Centenary Conference in 1981. In academé, Slavick contributed significantly to faculty shared governance, originated the USM honors program, chaired faculty bodies including the Maine Association of University Professors Conference, led in initiating faculty collective bargaining, and organized academic and peace conferences.[not in citation given] He served on the board of Citizens for Educational Freedom.[not in citation given]
- Tuttle, Jeff (October 19, 2006). "Retired USM professor presents anti-war message to voters". Bangor Daily News. pp. B1, B5. Retrieved 18 April 2012.
- Farmer, David (May 23, 2006). "Independent close to joining Senate race". Sun Journal. p. A3. Retrieved 18 April 2012.