RICHMOND, Va. — The two University of Richmond basketball coaches killed in a hot-air balloon crash were a beloved longtime assistant and a woman who was hardly out of college and always cheerful and willing to help.

The pilot, Daniel T. Kirk, was also killed when the balloon drifted into a power line and burst into flames Friday. He had 20 years of flying experience and was affectionately known as “Capt. Kirk.”

At the university’s graduation Sunday, a moment of silence was held for the coaches — director of basketball operations Natalie Lewis and associate head coach Ginny Doyle.

Doyle, 44, was hired by Bob Foley at Richmond in 1999 and stayed on through a couple of coaching changes.

Lewis was a four-year letter-winner in swimming who just completed her second season with the basketball program. She made travel, hotel and bus arrangements for the team.