Polishing

This is my ‘office’ at the moment (in my camper van).  I have just about finished polishing the biography following editing.  I still have a little bit more to finish.  Annoyingly, I have two quotes which I can not find the references for.  So, I have been going through ALL of my records, every single place that I can think of, both on digital and also my early handwritten notes.  The photo shows one of my notebooks from six years ago.  Gosh, I have come a long way, lol.

What should I do about the quotes?  Should I put source unknown, or unattributed, or something like that?  Or leave the quotes out altogether?  (I like the information in the quotes, one is crucial, one isn’t.)