A search of the FAA Airmen's registry shows plenty of people named "Greg" or "Gregory" Pearson. But not a single one of them hold an Airline Transport Pilot certificate (a license to fly a commercial airliner). Unfortunately you will have to search the records yourself as (probably for privacy reasons) I can't link you to the results I get. https://amsrvs.registry.faa.gov/airmeninquiry/Main.aspx