Possibly R.H. Donald, representative from Denton County to 1861 secession convention, p. 96.
History of Denton County, From Its Beginning to 1960 1978.
Historical marker, Flower Mound Cemetery, Denton County. "Early Flower Mound families initially had plots. The Donald plot includes burials of the cemetery's founder [Matthew Donald] and his brother, Robert Henderson Donald, who served as church deacon and state legislator."
Texas Historic Sites Atlas (Texas Historical Commission) .