Jasper's Memo Pad is a document found in Silent Hill 4: The Room. It is found the first time through the Forest World, inside of Jasper Gein's car. It describes a message that Joseph Schreiber gave him in the past about the Rusted Bloody Key that opens the door to the Wish House Orphanage.
I'm not sure what that nosy guy meant when he said:
"His home is the orphanage
in the middle. The lake is northwest.
So the opposite is southeast."
The nosy guy said one other thing I
"If you bring the dug-up key,
you can't go back.
Put it away somewhere before
you return there".