Hello. I hope your still looking? I have some updated info, however not very much.
John H Egan
B: 24 June 1828 Denigold, Goldway County, Ireland
D: 27 Feb 1862 Ball Cemetary, Lebanon, Missouri
Hanna A Egan (Keith)
B: 2 Jan 1834 Ireland
D: 13 Feb 1875 Oakland Cemetary, Missouri
John had a mother Ann Egan B: 1805 and father Michael Egan. I have no other info besides that and hope it helps. I am trying to go back further also! Good luck!