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World War I The South African Irish was formed at the outbreak of World War I in August 1914 when three officers ( Major George Twomey , Captain J. Jeoffreys and a Captain MacDonald ) met at the Irish Club in Johannesburg in order to raise an Irish regiment from among the citizens of Johannesburg and its surrounding areas .
 Johannesburg, Johannesburg
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Johannesburg, Johannesburg