The Leslie C. Peltier Award is an annual award given by the Astronomical League to an amateur astronomer who has contributed observations of lasting significance. It was created in 1980 and was first awarded in 1981.
The award is named in honor of Leslie Peltier, an amateur astronomer from Delphos, Ohio, who was described by Harlow Shapley as "the world's greatest nonprofessional astronomer".
Source: Astronomical League