Welcome to the Gresham_Grissom DNA project.

Our goal is to find connections through Y-chromosome DNA testing for folks with the surname Gresham, Grissom, Grisson, Grison, Grisom, Griston, Grishom, Greshom, Grissum, etc. Men who share a recent paternal ancestor have similar Y-chromosome DNA. By looking at values at specific DNA marker locations, we can tell how closely related we are to each other. If you share one of our project surnames, we invite you to join the project and see if you are related to other project members. Please see the Y Results Tab for results of project members.