This has also happened in our family!
Sister in law UPS a quilt to our neice at her dorm. It was never received.
A friend UPS a quilt to my daughter in North Carolina. Never found!
Thanks for the "lost quilt site" I will talk to them and see if we can recover at least one. The one mailed to my neice would be too late since it happened 30yrs ago.
I have a couple quilts to send to my nephews in Florida and I am "antsy" about doing it!