63245
He is a great-great nephew of the Reverend George Gilfillan who was apostrophised in William McGonagall 's first poem .
 George Gilfillan, William McGonagall
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 George Gilfillan, William McGonagall