41836
In the 1969 – 70 season , he established himself as the first choice ' keeper at Maine Road , taking over from the ageing Harry Dowd .
 Maine Road, Harry Dowd
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Maine Road, Harry Dowd