I have been compiling a spreadsheet of O'Rourkes who lived in Missouri, particularly in the St. Louis area. At this point, I have over 840 people in the spreadsheet and have been able to identify the following family lines so far:
Jeremiah O'Rourke (b. 1826 in Ireland) and Mary Fay (born 1831 in Ireland)
Jeremiah O'Rourke (born 1825 in Ireland) and Mary Foley (born 1837 in Ireland)
Thomas O'Rourke (born Ireland; birth year unknown) and Margaret Dwyer (born Ireland; birth year unknown)
Martin O'Rourke (born about 1843 in Ireland) and Margaret Dwyer (born aboutt 1837 in Ireland)
Thomas O'Rourke (born about 1825 in Ireland) and Ellen McGrath (born about 1837 in Ireland)
William O'Rourke (born about 1843 in Ireland) and Catherine Whearty (born about 1845 in Massachusetts)
and an O'Rourke/Haggerty/Brown line (possibly family of Ernest and Margaret O'Rourke).
Data were collected from death certificates, MO death records, St. Louis death records, cemetery records, census records, family records, SSDI records, obituaries, city directories, and more. If you are looking for information on O'Rourkes who lived in MO, I would be happy to share what I have so far. I am trying to connect my line (Jeremiah O'Rourke and Mary Fay) to other O'Rourke families living in St. Louis in the 1800s.
Please feel free to e-mail me at firstname.lastname@example.org