This is a Message Board Post that is gatewayed to this mailing list. Classification: Query Message Board URL: http://boards.ancestry.com/mbexec/msg/an/yYB.2ACI/15061 Message Board Post: Is anyone out there a retired lab tech or maternity doctor from the late 1960s or early 1970s? I am trying to understand who might have taken and processed an ABO blood test to determine paternity from the old Columbus Board of Health off Washington Blvd in the late 1960s. DNA tests were not available then and this ABO test might have even been new. Can anyone help? Do you know anyone who might know this answer? Please forward my email. Thanks, Tina