Carolyn L. and Jason E. Carlson, Lawrence, announce the birth of a son, Mason Elliott Carlson, on July 1, 2002, at Lawrence Memorial Hospital in Lawrence.

He weighed 8 pounds, and measured 20.25 inches long.

Maternal grandparents are Richard and Cindy Heider, St. Joseph, Mo. Paternal grandparents are Chris and Paula Carlson, McLouth.

Great-grandparents are Ed Heider, St. Louis, Mo., Norma Osborn, Independence, Mo., Marie Carlson, Lawrence, and Maxine Reed, Ottawa.