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In a 1962 – 1963 episode that came to be called " the Peyton Road affair " , Atlanta mayor Ivan Allen responded to residents ' fears of blockbusting by directing city staff to erect barricades on Peyton Road and Harlan Road to restrict access to Cascade Heights , thus preventing African American homeseekers from getting to the neighborhood from Gordon Road .
 Atlanta, Ivan Allen, Cascade Heights
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Atlanta, Ivan Allen, Cascade Heights