Updated 14 September 2024 The Big Y 700 is our test of choice for males. To help find family connections for the GESSERTs of all spelling and variations. By joining the group you agree to provide the project with 3 things. 1) The surname of the person being tested. 2) The name, date and place of birth of the oldest researched male ancestor of your male patrilineal line and the oldest researched female ancestor of your matrilineal line. 3) Permission to publish the DNA results and the names, dates and places of birth of the oldest known patrilineal or matrilineal ancestor. The intent of the GESSERT surname project is to determine how the GESSERTs living around the world are genetically connected. All males with the last name of GESSERT are encouraged to submit their DNA results in order to faciliate the creation of the largest GESSERT surname database.