PITTSBURG, Kan. — The Mineral High School Alumni Reunion Committee has announced it will host its “All School Reunion” on September 3, 4 and 5, 2021. There will be a reception at Big Brutus from 6 to 8 p.m. Friday, September 3. All activities on Saturday, September 4, will be at the Lamplighter Inn, 4020 Parkview Dr., Pittsburg.