Josephine Hopper's notes on the painting
Starting shortly after their marriage in 1924, Edward Hopper and his wife Josephine (Jo) kept a journal in which he would use a pencil, make a sketch-drawing of each of his paintings, along with a detailed description of specific technical details. Jo Hopper would then add additional information about the theme of the painting.
A review of the page on which Nighthawks is entered shows (in Edward Hopper's handwriting) that the intended name of the work was actually Night Hawks and that the painting was completed on January 21, 1942.
Jo's handwritten notes about the painting give considerably more detail, including the possibility that the painting's title may have had its origins as a reference to the beak-shaped nose of the man at the counter or that the appearance of one of the "nighthawks" was tweaked to relate to the original meaning of the word:
"Night + brilliant interior of cheap restaurant. Bright items: cherry wood counter + tops of surrounding stools; light on metal tanks at rear right; brilliant streak of jade green tiles 3/4 across canvas—at base of glass of window curving at corner. Light walls, dull yellow ocre [sic] door into kitchen right.
Very good looking blond boy in white (coat, cap) inside counter. Girl in red blouse, brown hair eating sandwich. Man night hawk (beak) in dark suit, steel grey hat, black band, blue shirt (clean) holding cigarette. Other figure dark sinister back—at left. Light side walk outside pale greenish. Darkish red brick houses opposite. Sign across top of restaurant, dark—Phillies 5¢ cigar. Picture of cigar. Outside of shop dark, green. Note: bit of bright ceiling inside shop against dark of outside street—at edge of stretch of top of window.[7]"
In January 1942, Jo confirmed her preference for the name. In a letter to Edward's sister, Marion, she wrote, "Ed has just finished a very fine picture—a lunch counter at night with 3 figures. Night Hawks would be a fine name for it. E. posed for the two men in a mirror and I for the girl. He was about a month and half working on it."[8]