In 1918 Pascin married Hermine David at City Hall in New York City. Their witnesses were Max Weber and Maurice Sterne, friends and painters who both lived in New York. In September 1920, Pascin became a naturalized United States citizen, with support from Alfred Stieglitz and Maurice Sterne, but returned to Paris soon afterward. There he began a relationship with Lucy Vidil Krohg, who had been his lover ten years earlier but had married the Norwegian painter Per Krohg during Pascin's years in America.