in the Indiana, WPA Death Index, 1882-1920
Interred Feb 22, 1913. Birthdate calculated from (somewhat) exacting age data in online record, and her obituary (84y 11m). Also, she's listed online as "Griffiths".
Catherine was possibly a relative of an Elizabeth Humphreys, whose memorial stone is in her plot next to Catherine's. See the photos in this memorial.