GLOVERSVILLE — It’s been 55 years since the Gloversville High School and Bishop Burke High School classes of 1968 graduated. Though the alumni are now scattered across the country, there’s something about Gloversville that keeps them all coming back — and giving back. Mary Ivancic oversees the group’s reunions. She said the events highlight the graduates’ commitment to their home city. “We really try our best to be as local as possible and give back to the community. People can go downtown if they wish or visit the high school,” Ivancic said. “We want to make it a weekend that’s…