Brenan started swimming at an early age in his hometown, Sun Prairie, WI. Once Brenan knew how to swim, he joined a swim team and swam with them until he moved to California in the 3rd grade. However, he wasn’t a part of a swim team during his time there, but he did play water polo. It wasn’t until he moved back to Wisconsin and started high school that he would join the swim team there. When he turned 16 he got his first job as a lifeguard where he saved a few lives and started to learn about prevention of accidents. He soon moved back to California and went to school to be an E.M.T. Although, while going to school he was still lifeguarding, and on one fateful day one of his coworkers didn’t show up to work, much to his boss’s chagrin. In an act of desperation, his boss asked him to teach a swim lesson in place of the absent instructor. It was then that Brenan had fallen in love with teaching and has been ever since.