Classes were canceled Monday in observance of Martin Luther King Jr. Day, but one Missouri Southern State University group put King’s legacy of service to the test by giving up the morning to volunteer. About 50 student athletes and coaches spent the morning at Children’s Haven, 701 S. Picher Ave., to help the shelter — which temporarily houses children and teens in times of family crisis — move into a new, larger home that has been built next door at 711 S. Picher Ave.