CA Gov't Code Section 31842

As used in this article “eligible spouse” means an individual who is caring for one or more of the children (as defined in Section 31843) of a deceased member and who is:

(a)

The widow or widower of such deceased member, or

(b)

The divorced former spouse of such deceased member, from whom he or she was receiving not less than one-half of his or her support at the time of his or her death.