Did you find a picture? I believe he is my gg grandfather as well. I'm just starting my search but I've learned a bit about him. His brother C(harles) B. Speller served in the CSA, and is buried in the Speller Family Cemetery in Windsor, NC. Their father Thomas Speller was one of the largest slaveowners in the County, owning over 100 slaves. I have located R.M. Speller in 1860 and 1880 censuses. In 1880 census, he is living with Effie Bond, with whom he apparently had 8 children. I welcome more info on Effie and R.M., including pictures.