"[1] Agnes Sime Baxter was born on March 18, 1870, in Halifax, Nova Scotia.

[3][4] Her supervisor James Edward Oliver's mathematical notes were edited by Baxter in 1894 and later published.

Agnes chose not to teach at the institutions where her husband was a professor, although Albert credited her with assisting him in his work.

[3][4] On her death, her husband Albert Ross Hill wanted his wife's memory to be preserved and donated $1,000 to Dalhousie University for the purchase of a collection of books at Dalhousie University.

The university also created the Agnes Baxter Reading Room within the Department of Mathematics, Statistics and Computing Sciences.