KC,If you go to findagrave.com you will find this.
Henry C. Eberle B-1826 D-April 17, 1899 Inscription-Father-aged 73 years Henry Eberle Cemetery Mount Joy, Lancaster County, PA
Maria A. Helig Eberle (When you look at the picture of the gravestone the name is spelled Heilig) B-1833 D-Jan 29, 1862 Inscription-Mother-Aged 28 years-Beloved wife of Henry C. Eberle Henry Eberle Cemetery Mount Joy, Lancaster County, PA
Pennsylvania usgenweb archives for Lancaster County has that Henry's grave is the 3rd in a plot of 4 and Maria's is the 4th in a plot of 4 so they are buried next to each other.There is another wife for Henry C. Eberle-Mary A. Grogg died Aug. 30, 1893, 46 years old, 2nd in plot of 4.
There is also a Henry Eberle-born April 5, 1795 and a Annie Eberle-born May 14, 1800 buried there.