The 2nd Annual Michigan Invitational Marble Tournament is scheduled for Saturday, April 13 starting at 9:00 a.m. in the YMCA gymnasium. The public is invited to attend. Teams age 7 through 13 are invited to call Sam Grey of Port Huron at 810-987-5798 or Kim Hartman of Croswell at 810-697-3904. This invitation is also open to adults who desire to learn the game and become instructors and game officials. All training, equipment and marbles are provided at no cost.