A list of delayed birth records for Lyon County is now on line at: http://www.rootsweb.ancestry.com/~kylyon/ Below is a brief explanation of what these are: Births were not required to be registered with the State until 1911 so any births before that may have been recorded or not. As rules developed for various things, like the Social Security Act and the Railroad Retirement Act, people needed an accurate account of their birth so they could file for a Delayed Birth Record if a birth certificate was not recorded. The births in these files are from the late 1800's to 1910. Vicki