I've been asked to submit a list of skills and mentors that can attest to my abilities and I have no clue of where to start! Half of the people I worked with have dispersed and I'm not sure of how to contact them, and I'm not sure of how much detail I should go into on my list. Should I list chronologically or categorise according to subject? Should I try to contact people and ask if I can add them to the list? Any kind of advice would be greatly appreciated!