I've been browsing the World War II "Old Men's Draft Cards" on FamilySearch looking for good signatures for my "Daily Genealogy Transcriber" page.
This is the card for Virgil Rampley, brother to my great-grandmother Fannie Neill. I really didn't expect her to be listed as the person who would always "know your address," but sure enough she was.
Of course, the relationship was not stated, but if I hadn't know where she lived during World War II this would have been a nice find.