Redigerer John Joseph Hennessy (avsnitt)

===Bakgrunn===
I 1850 ankom John Joseph Hennessy og hans foreldre Michael og Ellen (''née'' Cronin) Hennessy.<ref name="blackmar">{{cite book|editor1-first=Frank W.|editor1-last=Blackmar|editor1-link=Frank W. Blackmar|title=Kansas: A Cyclopedia of State History, Embracing Events, Institutions, Industries, Counties, Cities, Towns, Prominent Persons, Etc.|url=https://archive.org/details/bub_gb_o8X5krq3fP8C|year=1912|publisher=Standard Publishing Company|location=Chicago}}</ref> fra Irland til USA, og de slo seg ned i St. Louis i [[Missouri]].<ref name="american">{{cite book|title=[[The National Cyclopaedia of American Biography]]|volume=XII|year=1904|publisher=James T. White & Company|location=New York}}</ref> Han gikk på ''Christian Brothers College'' til 1862 i småbyen [[Town and Country (Missouri)|Town and Country]] i Missouri.<ref name="american" /> Han studerte filosofi ved ''St. Vincent College'' i [[Cape Girardeau]] i Missouri, og [[katolsk teologi]] i ''St. Francis Seminary'' i [[Milwaukee]].<ref name="blackmar" />