The Warren County chapter of the American Red Cross is announcing sign-ups for this summer’s Learn-To-Swim classes will be held tomorrow, June 30, from 5 to 6:30 p.m., or until the classes are full, at McMinnville Civic Center.As in previous years, classes will be available for 6-year-olds and up. Children must be a minimum of 6 when their class starts. Adult classes will be 15 and up.Classes are at Gilley Pool Monday thru Friday for two weeks and last one hour each night.