Francisco Chacon was born about 1798 and Maria Diega Lerma was born about 1798; both probably in San Pablo, Meoqui, Chihuahua, Mexico.

Francisco and Maria were married on June 23, 1820 at the mission San Pablo, near the present day town of Meoqui, Chihuahua, Mexico.

Francisco and Maria were probably in their late 30's or early 40's when Jose Nicolas Milsano Lerma Chacon was born so it is likely he was their last child.