Brockman graduated from O'Neill High School, and after schooling on the west coast, he continued his education at the University of Nebraska at Lincoln, earning a degree in Dentistry. He has been practicing his profession for 33 years, the last 25 at his present office location.
A two-mile relay race in high school was Jerry's first 'official' race. As a Freshman, he breezed past his competitors --3 Seniors -- and won a medal. After high school Jerry, along with Tim French and Tim Edwards, organized the Shamrock Fun Run, a race held every year during the St. Patrick's Day celebration in O'Neill. Jerry's wife Therese Sullivan, a Registered Dental Hygienist and accomplished runner is also an award winner herself. The Shamrock Fun Run is currently sponsored by the O'Neill Rotary Club, and is now in it's 30th year. It has been recognized as the one of oldest organized runs in the state.
Inevitably, at some point in a runner's career, one may in a sense, 'bite the dust'. This low point for Jerry occurred during a triathlon in Grand Island, Nebraska in 1990. During the swimming portion of the event, he panicked and nearly drowned; "The good swimmers have their own life guards, the bad swimmers are on their own..." Fortunately, he was able to compose himself and swim to shore. However, his next 'bump in the road', was the result of "too big of a loop in his shoestring"... he finished close to last, skinned and bloody.