Hi Steve,
I have some more information about Katherine Roys Spencer. Her first husband, before marrying Charlton Hoadley and Thomas Flynn, was Walter Craig Lang, and they married on 21 June 1889 in Waterbury Connecticut. I have in my possession a printed copy of their wedding reception invitation, in which Katherine is listed as 'Kittie Roys Spencer'. I have put a copy here on Flickr:
https://www.flickr.com/photos/johnchess2/14429352196/in/phot...The marriage does not appear to have lasted long and ended in divorce within about ten years. In 1900 Katherine/Kittie can be found living with her mother in Waterbury CT, but by then Walter Craig Lang had removed to Oakland CA.
Regards
John