Vital Records for Dodge County were destroyed in a fire in 1871. I have visited the Dodge County court house and found the records absent. The twins are recorded in the 1860 census in the town of Rubicon. Both twins report the same date and place of birth at there death. I am unsure what constitutes reasonable proof in this case, but I believe this data and will stop looking for better. If someone else can help it will be appreciated.