After a year of searching I have new information to add to my McLaughlin family search! After a long drive on a winding back road, I found a lovely little cemetery. Much to my surprise I found the next generation back engraved on a beautiful gravestone. This is what it read:
Patrick Mclaughlin 71 years died 3-7-1887
Wife Margaret Heffron age 61 died 8-2-1886
James: son of Patrick and Margaret

How lucky I was that my GG Grandmother had her maiden name on the stone!
After going thru census records, I determined that James was only a child when he died. Other children were:
Catherine b abt. 1851
Mary (Maria) b abt. 1853
Elizabeth b abt. 1857
James b abt. 1860

I don't know what happen to Catherine or Mary yet. Elizabeth (G Grandmother) married in 1881 to James Coyne.
Any information anyone can share on this family would be appreciated.