I checked the Monticello library this morning and I did not find your people in the obituary index. They were in the cemetery index along with Nina Arminda Airhart Oct. 19, 1861 - June 15, 1907 who is buired in the same cemetery in the next row. The 1896 White County Plat Book shows J.H. Airhart owning 80 acres in Section 6 in Round Grove Township. Also, Wm Airhart ownd 80 acres next to J.H., and M. Airhart owned 80 acres across the road from William in Section 7. Any relation or just more confusion? I hope this helps. Larry Holderly