Jon and Jean (O’Donnell) Derner, Villa Ridge, announce the birth of a son, Mason Thomas Derner. Born Sept. 18, 2013, at St. Anthony’s Medical Center, St. Louis, he weighed 8 pounds, 12.5 ounces.

Mason joins Lane Derner, 6, and Emily Derner, 2.

Grandparents are Marcia O’Donnell, Union, and the late T.J. O’Donnell, and Neil and Delores Derner, Washington. Great-grandparent is Lucille Derner, Washington.