John B.Hardeman,born1874, Cincinnati,Ohio HELP!

Hello,
I'm seeking any information on who I believe to be my g-granfather.John B.Hardeman/Hardiman parents are John Hardeman born abt 1854 in England/Ireland,married Mary Jacobs Abt 1855 from Maysville,Kentucky.
known Children:
John B.1874 Cincy,Ohio
Lawrence Walter 5 May 1875 bn Maysville,Kentucky
Paul N.or K. bn 1876 Cincy,Ohio
George bn 1878 Cincy,Ohio
Elmer bn 1879 Cincy,Ohio
Lucy May(Farmngas) bn 1884 Cincy, Ohio
Charles H.1889 Cincy,Ohio

John Lawrence Hardeman,bn abt 1830,England, came to this country with his wife Mary /Margaret Halley/Heeley/Holly. They travelled on the Ship "Calhoun",arriving in New York on 3 Sept.1857.The ship departed from Liverpool,England.
John age 27
Margaret age 28
Son James age 7
Son John age 4
Dau.Mary A. age 11 months
According to the ships manifest the family was from Ireland at the time of departure.There may have been other children born after comming to the U.S.Possible son Robert and Harry L.Hardeman.

John B.Hardeman married Margareth(Maggie)Veite in Cincy.My searching has got me convinced that there were possible 4 children born to them.
Hazel Mildred born Aug 1903(My Granny)Cincy.Ohio
Aunt Jessy who my be an "Ethel" date unknown,if I remember right she looked alot older the my grandma when I knew her.
Son John date unknown Cincy,Ohio( he is the only one I'm not sure of).
Sarah Lois bn 18 July 1905 in Savannah,Georgia.Sarah died unmarried while in childbirth on 15 April 1924,She and her child are buried at Spring Grove Cemetery,Cincy Ohio.
I know that Maggie and John B. divorced before the 1920 census.I found John listed in the 1920 census,living in Dallas,Texas,with wife Beulah,half his age,and daughter I make out to be Nellie Lu/Lo.Also the last name had gone from Hardeman to Hardiman sometime.After the 1920 census I can't find John B.
I would like to know what happened to him and his second family and where my greatgrandfather is buried at.Nothing in the 1930 census I can find.And I have spent many hours looking for them.
My g-grandmother Margaret remarried John H.Meiners of Cincy.Maggie died 20 Nov 1952 in Cincy,John was 103 at the time of his death in 1982,both are buried at Spring Grove Cemetery,Cincy,Ohio.www.springgrove.org
The son born to John and Maggie I would like to know about as well.I'm almost sure he was first born.My father doesn't remember if he had an uncle,Dad suffered a stroke on 9-11-2002 and now at 81 he just can't remember.I didn't start doing my tree until after the stroke.My grandmother Hazel died in 1959 when I was ten and altho I do remember many chats with her she only talked about her sister Jessy to me,who I did know.Grandmother also had one fault,she told alots of tall tales!To this day I haven't been able to locate a birth record for my Dad.The State of Ohio keeps sending me my money back,along with a note NO KNOWN birth.I now believe that granny wasn't married at the time of Dad's birth so once again I'm going to send a 15 dollar check to Ohio and see if I'm right!He would be Allen D.Hardeman as well,I hope !!!!!!
1920 census,Cincy, I found living with her aunt Anna/Annie Veite- Stahl,Hazel Hardiman age 16.Anna and her hubby George lived next door to Maggies parents,Fred and Sarah Mainster-Veite.I'm positive this is my grandmother listed.I haven't found Maggie in the 1920 census that I'm sure about.There is a Maggie Veite listed for Cincy,living with lodger Amen/Owen Arch.The age of this Maggie is slightly off but knowning my grandmother Hazel,who was also vane,(Acorns don't fall far from the tree),Maggie probably told some tales of her own.Maggie lied about her age when she married John H.Meiners,she was actually 5 years older then he.
If anyone can share any information on my line of Hardeman/Hardiman's please e-mail a.s.a.p.
Thank You so very much!
Stacy Mitchell-Ryan