Having found my second cache last month I was asked to check out a garden for another fairly modern lost savings 'hoard' prior to a house being sold.
Again an older person not trusting banks/paper money.
This time a glass jar had been used which kept the contents in mint condition. As well as the one ounce fine gold Krugerrands there was also all the gold rings/chains etc that had past down through the family.
So I would never ignore any hint, you just don't know what's going to pay off.