From the Australia Death Index on Ancestry.com, Mrs. Slevin was Margaret Jane Slevin, age 73.
An elderly resident or Latrobe-street, Geelong West, named Mrs. Slevin, died suddenly on Saturday under circumstances which were reported to the police magistrate. It appears that during the day the lady walked to North Geelong, accompanied by her son, and on her return, encountered a strong breeze. On reaching home she sat down, and almost immediately expired. Mrs. Slevin had been previously attended by Dr. Small for heart disease. Mr. Morrison expressed himself as satisfied that there were no suspicious circumstances, and intends issuing a certificate for burial.
Geelong (Victoria, Australia) Advertiser, September 2, 1907.