"The Queen was pleased to know about the hall and of its importance within Featherston, and Her Majesty was interested to learn of the special calendar you have created commemorating the centenary of the Great War," it said.
Club president Solitaire Robertson said members had hoped to get a response but were not expecting it.
"When we sent it we thought it would be nice if we got a reply back, so it was very exciting to get the letter with the Buckingham Palace mark on it."
She said it was neat the Queen replied to a group from a small town - and quickly too.
"It was very prompt, she must have literally got the calendar and asked her lady-in-waiting to reply."
Ms Robertson said there were now only three of the 250 calendars left, which is an 18-month calendar starting on July 2014 to reflect the start of the war in 1914.
They cost $30 each. Two are at the Carterton Library and one at Featherston Library.
The club gathered more than 50 images for the calendars, including photographs, articles, poems, paintings, letters and diaries, to show the war's causes, course and consequences.
The complete set includes calendars for 2016, 2017 and 2018.
Ms Robertson said the next calendar will focus on New Zealand, the connection with Featherston and the hall.
To order, phone 021 022 87955 or email featherstonanzac@ gmail.com.
The Anzac Hall was built in 1916 for the 60,000 soldiers who trained at the Featherston Military Camp.
