She said she believed ratepayers were unaware of the council's intention.
"The council does put information out on its website but a lot of older people don't have access to that information."
Ferguson said she spoke to Tararua Mayor Tracey Collis who told her to put her thoughts on paper and email them to the council.
"What we have asked the council for is a six-month stay of execution before it makes any decision regarding the building."
Ferguson said the Carnegie library has been the responsibility of local bodies for 110 years.
"The council's intention is to demolish the building and put in pensioner flats, but it would be lovely if we could have the council's encouragement and to work together to preserve this historic building.
"All towns have their own history and it is really important for all of us to try to preserve what is left otherwise we are diminished."
Ferguson said the group had been gleaning a lot of interest and support from the public who are now becoming more aware of the council's intention.
The council of 1907 applied to Carnegie for funding for a library and received 2000 pounds.
"Carnegie believed he should give his wealth away. His belief was that people could rise up out of poverty through education."
He built 2509 libraries worldwide with 18 of them in New Zealand, of which 12 are still standing.
"The Carnegie Building is something very special to our town."