The grassroots campaign to restore the tiny Bolinas Post Office—propelled by artwork, poetry, loads of letters and even an exorcism—has been brought to the attention of the United States Postmaster General.

“It’s actually really big for our little community to get that to happen,” said John Borg, whose Bolinas barn serves as a war room for a campaign that has rallied everyone from schoolchildren to retirees in the village of 1,500.

Organizers have been focusing…