Endres, David J.; Jerrold P. Twohig (Winter 2013). ""With a Father's Affection": Chaplain William T. O'Higgins and the Tenth Ohio Volunteer Infantry". U.S. Catholic Historian. 31 (1): 97–127. doi:10.1353/cht.2013.0003. ISSN0735-8318. S2CID161114953.
semanticscholar.org
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Endres, David J.; Jerrold P. Twohig (Winter 2013). ""With a Father's Affection": Chaplain William T. O'Higgins and the Tenth Ohio Volunteer Infantry". U.S. Catholic Historian. 31 (1): 97–127. doi:10.1353/cht.2013.0003. ISSN0735-8318. S2CID161114953.
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Endres, David J.; Jerrold P. Twohig (Winter 2013). ""With a Father's Affection": Chaplain William T. O'Higgins and the Tenth Ohio Volunteer Infantry". U.S. Catholic Historian. 31 (1): 97–127. doi:10.1353/cht.2013.0003. ISSN0735-8318. S2CID161114953.