Lorraine Lock of Minot will celebrate her 80th birthday at an open house Saturday, July 10, from 1 to 4 p.m. in the Grand International Inn in Minot. Her children, Judy Brandt, Fargo; Diane Ballew, Sioux Falls, S.D.; Tom Lock, Robert Lock, Paul Lock and Donna Grosz, all Minot; Mary Ballantyne, Billings, Mont.; and Lori Lock, Savage, Minn., and their families will host the event. The family requests no gifts.