Surnames mapped out by end location number on chromosome twenty three, known as the X Chromosome, with a visual reference are posted below. Surnames with blue text bear more weight as a common ancestor was found with match(es). Some end location numbers are associated with multiple surnames. To see which end location numbers match each surname, login to this site, then do a database search by chromosome number or surname.
Ashton/Aston/Astone
Collins
Collins, Finley/Findley, Griffith
Bradbury, Griffith, Morgan
Gunn, Jordan, Hooper, Powers, Wilson
Murray