DeWare was born in Moncton, New Brunswick, to parents Mary and Hugh Keiver.
[2] She skipped her team to a New Brunswick and Canadian Curling Association Ladies Curling championship in 1963, forerunner to the Scotties Tournament of Hearts.
In 1990, she was appointed to the Senate of Canada representing the senatorial division of Moncton, New Brunswick.
A Progressive Conservative, she was the Opposition Whip in the Senate from 1999 to 2001.
DeWare died in Moncton on 17 August 2022, eight days after turning 96.