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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A decision is expected today on whether to open new inquests into the deaths of the 21 victims of the Birmingham pub bombings.
A dull and damp day, with cloudy skies and further outbreaks of rain, locally heavy during the morning.
It will be a cloudy day across the West Midlands with showery outbreaks of rain, possibly heavy in places