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William Thomas and Lizzie Walker married in 1896 and had ten other children : Charles Elmer Walker ( 1897 – 1941 ) , Pyburn Elton Walker ( 1899 – 1987 ) , Edgar Lee " Ed " Walker ( 1901 – 1972 ) , Vester Walker ( 1902 – 1906 ) , Gladys Oneta Walker ( 1904 – 1963 ) , William Elmo Walker ( 1905 – 1956 ) , L.Z. Walker ( 1907 – 1993 ) , Grace Mae Walker ( 1909 – 1991 ) , Edwin Olen Walker ( 1911 – 1978 ) , and George Thomas Walker , Sr. ( 1913 – 2011 ) .
 person: Walker; person: Walker; person: Walker; person: Walker; person: Walker; person: Walker; person: Walker; person: Walker; person: Walker; person: Walker; person: George Thomas Walker , Sr.
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Walker; person: Walker; person: Walker; person: Walker; person: Walker; person: Walker; person: Walker; person: Walker; person: Walker; person: Walker; person: George Thomas Walker , Sr.