Left over Missionary funds

I have a significant amount of money left over in a Missionary account after she has returned. The family has since moved out of the ward. I know we can't refund the money to the family, but what are my options. Does it need to revert back to the ward Missionary fund? They have another missionary headed out in a few months, but I don't know of any way I can transfer these funds to their new ward. Is this even an option, and if so how?

Thanks

You could move the funds to the ward missionary fund, or you could transfer those funds to the stake's missionary fund. It is also possible to transfer those funds to the family's current ward, either by check or by contacting the Global Service Center.