She was a friend and a great defender of plants.
Lynda Mapes of the Seattle Times published a lovely article about Cass online:
http://www.seattletimes.com/seattle-news/plant-amnesty-founder-cass-turnbull-dies-at-65/
and Peggy Sturdivant wrote in the Ballard News-Tribune:
https://www.westsideseattle.com/ballard-news-tribune/2017/01/30/large-ballard-cass-turnbull