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.
More top news
A young Birmingham dad fighting leukaemia is desperately appealing for a bone marrow transplant to enable him to see his kids grow up.
The first volunteers from the NHS depart for Sierra Leone today to join the continuing fight against Ebola.
Latest weekend weather forecast for the East and West Midlands.