Is this Patrick McKendrick? (the '1' threw me)
If so, Hi!
I now have Mary's birth as Apr. 1833. Came from 1900 (1st Ward,Springfield,Clark Co., Page 106) census where she's living with George and Kate DONOVAN her daughter an son-in-law.
John & Laura were married in Clarke Co., OH. Have a fuzzy copy of the license and the return. I have found additional info on James M. Gregg. I'm on the road right now but will dump more next week.
Dave Eastep