(331785) Sumners = 2003 HL15
Carolyn Sumners (b. 1948) has taught astronomy at the Houston Museum of
Natural Science's Burke Baker Planetarium since 1972. It was her inspiration
to move a meter-class telescope to the George Observatory in 1989 for
educating the public under the stars.
A complete set of naming citations of the numbered minor planets is available in the Dictionary of Minor Planet Names, edited by Lutz Schmadel.