They resided in Forreston which had a population of 238 in 2008. During the era we are researching, it was probably smaller and there was only one family with the Walker-surname? Clues are 1920 Ellis-Forreston-District 116-Image 1 in which Walter was enumerated as William. In 1930 Ellis-Precinct 1-District 11-Image 10 he reverted to Walter. On both records, he's still married to Ada and grandson William E. Harwell was part of the households. No offense, but my research indicates females arbitrarily changed their names more often than males. An example was Walter's daughter, Hazel. Identified with middle initial "F" in 1900 and 1910, her death record has Taviet as her middle name. It's possible the middle line of the "F" faded on the death record causing it to resemble a "T" or the person recording the info simply made a mistake?