The Michael G. Bridges' of Leisure World, MD

I am just beginning research into my family history. I have entered all of my father's, George R. Bridges (12 Mar 1906-13 July 1984), earlier research onto the "Family Tree Maker" software and am now seeking to expand his research. I am searching for information on my (paternal) great grandparents: Michael Whalen, born in County Galway, Irland (date unknown), and Mary Cauttman (or Cottman), born in Stuebenville, Ohio (date unknown). I'm guessing both were born somewhere around 1855-60 and married about 1880. They had seven children, including my grandmother, Anna E. (born 25 Mar 1885 in Wheeling Juction WVA and died 10 Jan 1965 in Takoma Park, MD). I also an seeking information my (maternal) great X4 grandparents, Randolph D. Reno (born 7 Nov 1813-place unknown) and died 11 Mar 1892, and his wife Charity (born 4 Mar 1814 and died 28 Feb 1888). They had 11 children, including Thomas R. Reno (born 9 Nov 1834 and died 12 July 1912). Thomas married Arminta Whitmer on 10 Feb 1863; she died 24 July 1912.