I have some information for the Vermilion County Holycrosses.
George Holycross, born 1812/14 married Elizabethboth buried in Fletcher Chapel Cemetery, Harmony Township, Clark Co. Ohio
They had at least two sons, Samuel and Albert.Albert died at age 22 and is buried at Springhill Cemetery in Danville IL (Lot 101, block 19A)
The other son, Samuel was born 2 April, 1843, Springfield, Clark Co, Harmony Twp, Ohio.Married Mary Elizabeth Craft in Danville, 30 october, 1866.
The only child I know of is William, born 1871.His son, Thomas William, was born in Detroit March 22, 1921.There were other children but my father-in-law (Thomas William) doesn't know their names.They were from an earlier wife.