Surrounded by the signature colors of Duluth’s Central High School, a small group was there for a celebration decades in the making. Jed Carlson / Duluth Media Group"When we graduated from Central in 1951, none of us could have imagined we'd be getting together 75 years later," said Richard Gurske, who turns 94 next week. She remembers when, another 40 years later, that school closed as well, as part of the Duluth school district’s consolidation plan. Jed Carlson / Duluth Media GroupSeated around the table, the gathered alumni looked over yearbooks from their high school days. They’ve kept tabs on their friends from Central High School — a group of 12, nicknamed "cheaper by the dozen."