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The board included the names of nurses Lily Lind, Emily Ruth Rhind, Alice Maria Victoria Rhind and Royal Red Cross recipient Annie Johanna Mackay.
Mrs Robbie, who was on a mission to locate and restore war memorials and honour boards throughout the region, said it was unusual for more than one or two nurses to be listed on a community honour board.
''I don't know of any other board anywhere in Southland that actually has four nurses listed on it.
''It was quite significant for the Makarewa area for four nurses to go away,'' she said.
The white limestone and sheer size of the board, weighing more than 200kg, also made it unique.
''It's beautiful, an absolutely stunning board, and so intricately carved.
''It's been quite an exercise to get it on the wall.''
The board had been relocated from the Makarewa Presbyterian Church after the building was sold.
Makarewa School principal Kevin Silcock said the pupils had shown ''quite a lot'' of interest in the board and finding familiar names listed.
''This has been gifted to the school and it's our job to look after it and to make sure these people are remembered,'' he said.
An official handover of the honour board will take place at the school tomorrow.