Organized Labor and Labor Politics in Maine, 1880-1890 (1966)
Two Decades of Organized Labor and Labor Politics in Maine, 1880-1900 (1969)
Organized Labor in Maine: Twentieth Century Origins (1985)
The Socialist Alternative: Utopian Movements and the Socialist Party of Maine, 1895-1914 (1985)
Collective Efforts Among Maine Workers: Beginnings and Foundations, 1820-1880 (1994)
In the Name of Humanity: Maine’s Crusade Against Child Labor (2000)
Organized Labor in Maine: War, Reaction, Depression, and the Rise of the CIO, 1914-1943 (2002)
Time-line of Selected Highlights of Maine Labor History: 1636-2003 (2003)
Labor in Maine: Building the Arsenal of Democracy and Resisting Reaction at Home, 1939-1952 (2006)
Unity in the House of Labor: Maine AFL-CIO Merger, 1956 (2006)
Requiem for the Labor Movement?: A Perspective (2007)
Labor Day — 2007: Pausing to Reflect on Images of Maine Labor One Hundred Years Ago (2007)
Time-line of Selected Highlights of Maine Labor History: 1636-2015 (2016)
Maine Labor in the Age of Deindustrialization and Global Markets, 1995-2005 (2017)