Sorry, I was looking under the wrong spelling (although the Jane Neisch may be a daughter and mispelled in death records; she is the only person listed in death records with that spelling).
Jane Neish died in San Francisco on 10/6/1907 at the age of 27 (Walter is not listed). Also, if you do a websearch at sfgenealogy.com. under last name of Neish. there is some other information that comes up under a couple of people that may be a brother and sister of Jane's husband. (ie James Glen Neish married Lizzie Gunn )