If any male with the name of Coltrane, Coltrain, Coltrin would like to find out if they have a common ancestor, please go to Family Tree DNA on the web. (At that site, put in the surname Coltrain.)For a 12 marker DNA test, the cost is fairly inexpensive. If you have any questions, please contact me. I chose this name because all Coltranes, Coltrains, Coltrins had this spelling in the 1700's on various documents.