Beloved son of Alexander Brown and Mary Leopold, brother to Miles Leopold, adored grandson of Ronald and Ellen Brown, Carolyn Kaplan, and Thomas and Janet Leopold. Cherished nephew of Jennifer Leopold and Steven Katz, Joanne Leopold, James Donohue and Martha Grover, Dana and Jeanne Brown, Emily and Adam Rudman, Elizabeth Kaplan, Andrew Goodwin and Sarah Heil, Elizabeth Goodwin and Fred Roberts, and beloved cousin to many. Oliver was an extraordinary person who accomplished more than seems possible in his 19 years. His passion for serving the community, seeking solutions to problems and challenging himself to reach new heights central to his essence. Oliver was a computer whiz, entrepreneur, YouTube phenom, camp counselor, published author, first responder, pep rally leader, triathlete, youngest stock trader to be interviewed on a national program, animal lover, and strict vegan who was deeply appreciated by all who knew him. He graduated early from high school so he could become an EMT on the front lines during COVID, working both on an ambulance and in an emergency room. Oliver took a gap year so he could become a paramedic and continue to be of service. In addition, he was a passionate Fire Explorer through the Evanston Fire Department and was inspired to create an App that was immediately adopted by Evanston Fire Dept. In high school, he was the voice that greeted every Evanston High School student over the loud speaker each morning and created an App that revolutionized the way students navigated their schedules. Above and beyond all his inventions and accolades, Oliver was deeply compassionate, curious, and engaged. He was a loyal and loving friend to many. He wanted so much to make the world a better place, and he most certainly did.