I returned the wallet today. The Phillipino couple were very glad to get it back. There was over $300 cash in it. I was somewhat surprised, but they brought me a gift, a box of chocolates and a very nice vase.
I was glad to help them out. It had all the husband's id, credit cards, citizenship card. It would have been a huge pain to lose all that stuff, not to mention the money. Probably a third or more of their mortgage payment.