I did a post on the Minutemen along time ago. So, I decided to a post on an individual member.
Mothman / Byron Lewis lived in Connecticut, but moved to New York. He was a millionaire inventor for the aviation industry. He decided to become a superhero out of boredom. Byron built himself his gliding suit. He perfected it after nearly getting himself killed several times. During this time, he became addicted to various drugs, such as morphine, aspirin and liniment, which would ultimately lead into his drinking problem. He became a hero shortly after the Silhouette appeared. Most people were amazed by his suit. Mothman joined the Minutemen. In the 1950s, he was one of the target of House of Un-American Activities Committee due to having left-wing friends. As such, his life became difficult until (after a long battle) he regained the clearance to be a superhero. The death of his teammate Dollar Bill led him to become an alcoholic. He eventually had a nervous breakdown and was locked in an asylum. However, he was allowed out temporally for a Minutemen reunion.
Like most of the Watchmen superheroes, he has no powers. He trained in combat to help him fight crime. He was also a genius inventor. His suit allows him to glide in the air.