have been researching the following surnames: foyil, vermillion, jones.We cannot find death cert.,birth cert or marriage for Sarah Foyil who married Robert Foyil, Sr.They had the following children: Della, Robert Jr. and Marion.We have located some info that we think is correct and that is that Marion mother was not Sarah. We cannot locate info on Della except that she was born in Indian Territory. She was my gggrandmother.She married William Axley Tomlinson in 1894. Della born in 1870. Sarah is supposedly married in White Dove Cemetery in Lincoln County at Sparks.It may be possible that she was a Jones or Vermillion before she married Foyil. Do you have any info?