This is a Significant People milestone.
One of the highest awards from the AHS, awarded annually. The citation is as follows, "Given to an individual who has a highly distinguished career in vertical flight aircraft research and development, and is skilled at communicating their technical knowledge and experience, for whom a summary of their original work represents a valuable reference publication"
The first recipient was Wieslaw Z. Stepniewski.
The AHS site provides a complete list of winners of the Nikolsky award.