Bennie was 14, Florice was 8, Willie Dee was 7 and Markatie was 1.
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There was also a Rebecca Bailey living in Little Rock in 1930. She was born in Louisiana and living with her 25 yr. old daughter, Mary Hunter. Mary was also born in Louisiana.
Not sure if this is the same Rebecca, but it is worth investigation.
This Rebecca is probably the one in the Arkansas Death Index (d. 1942, Pulaski).

Do a search in the online phone directories for family in waldo Arkansas. It is possible some family members remain.