Gibbon graduates of 2019 turn their tassels Wed, 05/15/2019 - 3:41pm Commencement ceremonies were held for the Gibbon High Class of 2019 on Saturday, May 11, with twenty-eight seniors becoming graduates. The ...PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today! Read more about Gibbon graduates of 2019 turn their tassels