Aberhart told the Times-Age that because of the large variety of memorials, he chose to concentrate on soldier figure memorials "or, as our Australian cousins refer to them, 'Digger memorials'.
"The Masterton memorial is the only one in Wairarapa that is of the soldier."
Masterton's cenotaph was constructed in 1923 and displays the names of the fallen from WWI.
Later, casualties from WWII were added, plus notifications that New Zealand has served in the Korean, Malaysian, Vietnam and Gulf War conflicts.
Wairarapa Archive war historian Neil Frances said the statue was designed by Frank Lynch and was named The Last Anzac.
"Lynch was actually an Australian, but raised in New Zealand.
"He and his brother Joseph established a studio in Auckland, and the statue is modelled on Joseph."
Mr Frances said there was an identical statue at the Devonport War Memorial in Auckland, but "nowhere near as impressive, the Devonport one is at eye level. It doesn't have the gravitas of ours."
The display was created by the Dunedin Public Art Gallery as part of the World War I centenary commemorations.
Museum director Anthony Wright says Aberhart's work is particularly thought-provoking and relevant in the lead-up to Anzac Day.
"These war memorials stand across both our countries as symbolic and moving tributes to those who sacrificed their lives in the wars of the 20th century and are powerful reminders of the massive casualties of war," he said.