I forgot to tell you (or maybe I already did) that I found a headstone with "McIvor" on it, in the "Old Fitzgerald" OR "Holy Cross" Cemetery, in Leasburg, MO. It's a tiny cemetery, way out in a cow pasture. Nicely kept up. My Ann (Mullen) McGrotty's dad, (his 1st wife), mom, her uncle, cousin's, etc. are buried in there. So, there was definitely a connection for your McIvor to Leasburg, MO. I found the stone and didn't even take a photo of it.