From Quora: My Answer to "So I’m applying to college, and I want to add how every summer when I visited the Bronx for family, I would volunteer to tutor the kids In my area. Because I wasn’t apart [sic] of an org. I don’t know if I can claim volunt

Get statements from the kids and their parents, if you can. Make sure you have their contact information. Hey, why not use one of the kids/parents as a recommendation, if they’re happy with the work you did? If you can’t, you can still say you did it, and explain what happened if the schools press you for details. If you have any records at all of what you did, make sure you have those ready to produce on request. If you don’t, write down what you did, and when you did it, to the best of your recollection.


It’s fairly likely the colleges won’t bother to check - they have MANY applications to check. NO, I am not telling you to lie on your application by making up work you didn’t do, awards you didn’t receive, etc. - it’s wrong, and you’re screwed if you get caught. But if you actually did the work, you’ll be able to describe what you did in detail, the hours will add up, and your story will make sense.
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As I’ve read in answers from college admissions officials, they will add up the hours you claim just to see if it’s even possible for you to do all the activities you claimed in a given time period. Hey, that’s how a lawyer who was sued for harassment by office staff was discredited in court- the staff’s attorney presented evidence that lawyer had billed for more hours in one week than there ARE hours in a week (i.e, more than 7*24 =168 hours in one week). They could, of course, ask you questions about what you did, and easily figure out if you’re lying or not.
TL;DR: Don’t worry as much about “proof” you did the hours as making sure you’re not lying about or exaggerating what you did. Try to get recommendations from your students or parents if you can. If not, refer back to my first statement and make your own notes about it.