Alison Corfield says she is delighted by the parish council's decision to correct her great uncle's memorial name.
Mrs. Corfield, from Shrewsbury, says her family had tried to hide the extra "s" by covering it with mud.
She wrote to councillors arguing that a change would be appropriate as the 100th anniversary of the start of hostilities approached.
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Six addresses have been searched as part of police investigations so far and seven arrests have been made.
A large part of Hagley Road in the south west of the city was cordoned off and later reopened.
Some rain overnight, becoming drier and much brighter tomorrow.