issue of PMLA has a pretty cool article ("Whitman's Children") by Bowdoin College English Professor Peter Coviello (pictured here) that takes as its starting point a couple of babies born after the U.S. Civil War that were named Walt—a nominal tribute that two veterans paid to Walt Whitman after receiving Whitman's care during the war. William H. Millis, for example, wrote to Whitman more than a decade after the war to say, "We have not forgotten you & want to hear more from you. We have had a son borned since we heard from you & We call him Walter Whitman Millis in honer to you for Love for you." And in 1868 Benton H. Wilson wrote to tell Whitman that his (Wilson's) once-rocky marriage worked out and that, "My little baby Walt is well & Bright as a new dollar."
Mad Men. (That's Draper reading Frank O'Hara's Meditations in an Emergency pictured above; you can watch the scene in which he recites O'Hara's verse in voiceover here.) As fans of the show know, "Don Draper" was not in fact Draper's birth name; it's the name of a soldier shot and killed next to Draper during the Korean War whose identity Draper adopted (or stole) by switching identification papers in hopes of escaping his past. Draper's birth name was—you got it—Dick Whitman. So, even though the real Don Draper died in the war, his name lived on, and the name Dick Whitman went into history as KIA. It's as if Dick Whitman were born one of the baby Walts mentioned in Coviello's article except that, instead of carrying on the Whitman family line, he chose to scrap it (during another war that split another country in half, mind you) in order to do his own act of re-imagining the future.
Breaking Bad. (Given the Whitman connection between them, one can't help but wonder if AMC used the same writers for both.) The connection between Walter White and Walt Whitman is suggested not just by their shared initials and shared first name, but by several moments in the show's plot—one where White's laboratory assistant Gale recites "When I Heard the Learn'd Astronomer" in full (watch it here), and another when Walt deflects the suspicion of his DEA agent brother-in-law by claiming that the initials "WW" on a piece of confiscated paper probably stand for "Walt Whitman" and thus make for a misleading or specious clue in his investigation.
A Supermarket in California," also walking all night through solitary streets dreaming of a lost America of love?