Sorry it took me so long to find this. Hope you are still here. I no longer think that Mahala Milburn wife of Joseph Gray is a daughter of Robert Milburn. She was born 1809 and Robert and his wife Nancy Carter didn't marry till 1812.Elias Rains was surety for the marriages of Mary Ann Milburn and Peter Gray and Mahalla Milburn who married Joseph Gray. I am sure now that Mahala, Mary Ann, and Elizabeth Milburn are siblings and daughters of the Nancy Milburn who signed their consent forms. Who this Nancy Milburn is I haven't figured out yet, but I don't see how she is Nancy Carter who married Robert Milburn. Does anyone else have any ideas. Frances Gray mother of Peter Gray signed his consent.