| A merchant prince of the copper country : one immigrant's American success story | Mulligan, William H. | Article in Journal | | 2004 |
| Antiquarian, academic or practical? Geologic knowledge in nineteenth-century Ireland | Mulligan, William H. | Article in Book | | 2016 |
| Bernard Sheridan - a man of steel | Mulligan, William, 1877-1968 | Article in Journal | | 2006 |
| Building new lives, maintaining old identities: Irish Associations in Michigan's Copper Country, 1860-1900 | Mulligan, William H., Jr | Article in Journal | | 2015 |
| Completing the ethnic mosaic : Irish miners in the Upper Peninsula | Mulligan, William H. | Article in Journal | | 2004 |
| Forging a better world: socialists and international politics in the early twentieth century | Mulligan, William | Article in Book | | 2012 |
| From the Beara to the Keweenaw : the migration of Irish miners from Allihies, County Cork to the Keweenaw Peninsula, Michigan, USA, 1845-1880 | Mulligan, William H. | Article in Journal | | 2001 |
| From the Emerald Isle to the Copper Island : the Irish in the Michigan Copper Country, 1845-1920 | Mulligan, William H. | Article in Journal | | 2004 |
| Introduction | Mulligan, WilliamSimms, Brendan | Article in Book | | 2010 |
| Irish immigrants in Michigan's copper country : assimilation on a northern frontier | Mulligan, William H. | Article in Journal | | 2001 |
| Irish immigrants in the early Keweenaw mines : a research note | Mulligan, William H. | Article in Journal | | 2000 |
| Miscellanea. Law and order in early nineteenth-century Limerick | Mulligan, William P. | Article in Journal | | 2004 |
| Radharc ar gCúl: A backward glance. Cecil Woodham-Smith's ' The Great Hunger' | Kinealy, ChristineMalcolm, ElizabethMulligan, William | Article in Journal | | 2008 |
| Some old Limerick newspapers | Mulligan, William P. | Article in Journal | | 2004 |
| The closure of the Limerick House of Industry in 1841 | Mulligan, William P. | Article in Journal | | 2006 |
| The enemy within, the enemy without : local government in nineteenth-century Limerick | Mulligan, William Patrick | Thesis | | 2005 |
| The Irish Diaspora : the larger context | Mulligan, William H. | Article in Journal | | 2006 |
| The primacy of foreign policy in British history, 1660-2000 : how strategic concerns shaped modern Britain | | Monograph or Collective Volume | Palgrave Macmillan | 2010 |
| Through a different lens : the Irish landscape as seen by mining promoters, 1835-80 | Mulligan, William H., Jr. | Article in Book | | 2008 |
| Violence and war in Europe and Ireland, 1911-14 | Mulligan, William | Article in Book | | 2013 |