Foster’s Cafeteria on Polk Street in San Francisco was a popular gathering place for artists and poets. It was located beneath the Wentley Hotel, where poet John Wieners wrote his seminal book, The Hotel Wentley Poems, in 1958. H. D. Moe, another poet who resided in the hotel, remembered Barton as “kind of the philosophical mentor” of a group that spent time in the café below.