McMillan Family From Robeson Co. North Carolina

My great-great-grandfather was Sandy McMillan who married Harriet Thompson.Sandy was born somewhere around the 1850's, in Robeson County.They had 6 children: James Monroe,Henry,George,Angus,Nancy and Alice,DOB's unknown. James Monroe married Katie Elizabeth McCallum,date unknown. Our family is decended from James Monroe, he had 9 children: Estelle,Willie,James M.,Annie, Maceo,George,David L., Eva,and Johnny.Maceo is my grandfather.
Any help locating anyone related to Sandy and his children would be greatly appreciated.
Harold E.M.McMillan

HaroldMcMillan
HMcmillan0@aol.com