The van and note can spawn multiple times within the same game.

One such location is across the river past a power pylon, directly north of the Ranger cabin. The van is one of several 'static' random encounters that occupy a set area in perpetuity once triggered.

The Vault-Tec note can be found underneath a skeleton lying next to a burned out Vault-Tec van, and when read marks the location of a vault on the map.

The note concerning a random weapon from Sue to Billy may be found on a spawned dead settler in the Deceased Fellow random encounter.

This is similar to ' As requested', a note from E to S, which is found in a hollowed out rock near Megaton in Fallout 3, as well as a note from The Elder Scrolls III: Morrowind's Bloodmoon expansion.

The note from E for S, may be found in a hollowed out rock behind some graves at the Museum of Witchcraft along with a modified hunting rifle and supplies.

The note from Brenda to Lee is attached to the doorframe of a cabin by a combat knife west of Cutler Bend (on the southern bank approximately halfway between Cutler Bend and Vault 95 and likewise between Egret Tours Marina and Vault 95 roughly intersect those two lines).

Fallout 4 notes mod