- Ph.D., University of Arizona
- University College Cork (Ireland)
- Lampeter Geography School (Wales, UK)
- Introduction to Human Geography (GEOG 101)
- Political Geography (GEOG 211)
- Europe in an Age of Globalization (GEOG 214)
- Geographies of Nationalism (GEOG 316)
- Geographies of Identity (GEOG 324
- Bucknell In Northern Ireland (UNIV/PSYC/GEOG 238)
Paths to Peace (Integrated Perspectives, with Professor Bill Flack, Department of Psychology)
- Professor Mulligan's research interests concern the concept of nationalism, and its intersection with race, gender and sexuality in the socio-spatial construction of subjectivity — focusing in particular on the "Atlantic world", and realizing a contemporary need to uncover "useful histories".
- He has published in Historical Geography, Gender, Place and Culture, and Social and Cultural Geography.
- He is currently working on a number of research projects, for example one that explores questions of race, class and space through an examination of mural art in Philadelphia, and another that considers sexuality, class and space through an analysis of the St. Patrick's Day/Evacuation Day parade in South Boston. Other recent research projects include an exploration of Frederick Douglass's abolitionist lecture tour of Ireland in the 1840s, and another that considers whether modern definitions of Irish citizenship are part of a restrictive legacy of colonialism.
- "Erin's Hope, Irish blood and indefeasible allegiance: reconfiguring citizenship and nationalism in an era of increased mobility", Annual Meeting, Association of American Geographers, Tampa, FL, 2014.
- "'Beyond the limits of the American eagle': Frederick Douglass, Ireland, and the realization of freedom", Annual Meeting, Association of American Geographers, Washington DC, 2010.
- "'I breath, and lo! The chattel becomes a man': the diasporic transformation of Frederick Douglass in the Emerald Isle", Annual Meeting, Association of American Geographers, Boston, MA, 2008.
- "Countering Exclusion: the 'St. Pats for All' Parade", Annual Meeting, Middle States Division of the Association of American Geographers, Reading, PA. 2007.
- "Countering exclusion: the 'St. Pats for All' Parade and the Construction of Alternative Irish Diasporic Direction", American Conference for Irish Studies -Mid-Atlantic Regional, Kutztown, PA, 2006
- "Shamrocks and Shenanigans: the St. Patrick's Day Parades of New York City", Sixth European Social Science History Conference, Amsterdam, The Netherlands, 2006.
- "The 'Solid Man': A Case of Misplaced Concreteness in the New York City St. Patrick's Day Parade", Annual Meeting, Association of American Geographers, Denver, CO, 2005.
- "More than a 'Petticoat Screen': the LadiesLand League and the Transnational Development of Irish Nationalism", Annual Meeting, Association of American Geographers, Philadelphia, PA, 2004.
- "Absence Makes the Heart Grow Fonder: The 1867 Rising and the Transatlantic (de)(re)territorialization of Irish Nationalism", Conference of Irish Geographers, Dublin 2003.
- Continuing to co-direct the Bucknell in Northern Ireland program — 2009, 2013 and 2015 — with Professor Bill Flack, Department of Psychology.
Ph.D. University of Arizona, 2001. "A forgotten 'Greater Ireland': the transatlantic development of Irish nationalism, 1848-1882." Advisor: Sallie A. Marston.
M.Phil. University College Cork, 1996. "The concept of landscape and its use in articulating and narrating an Irish national identity, 1895-1901." Advisor W.J. Smyth.
SCHOLARLY ARTICLES, BOOK CHAPTERS, REVIEWS ...
(2014) Erin's Hope, Irish Blood and Indefeasible Allegiance: Reconfiguring Citizenship and Nationalism in an Era of Increased Mobility, Historical Geography, 42, pp. 171-186.
(2009) 'By a thousand ingenious feminine devices’: The Ladies’ Land League and the development of Irish nationalism, Historical Geography, 37, pp. 159-177.
(2008) Countering exclusion: the 'St. Pats for All' parade, Gender, Place and Culture, 15(2), pp. 153-167.
(2008) Parading possibility: 'St. Pats for All' and the re-imagining of Irishness, in D. McNamara, Which Direction Ireland? (Cambridge Scholars Publishing)
(2005) Absence makes the heart grow fonder: transatlantic Irish nationalism and the 1867 Rising, Social and Cultural Geography, 16(3), pp.439-454.
(2004) Pleasure zones: bodies, cities, spaces, by David Bell et al, (Review) Gender, Place and Culture, 11(1), pp. 158-159.
(2003) The handbook of cultural geography, by Kay Anderson et al. (Review) Space and Polity, 7(3), pp. 314-316.
(2002) A forgotten 'Greater Ireland': the transatlantic development of Irish Nationalism, Scottish Geographical Journal, 118(3), pp.219-234.