A PhD dissertation written on him by Phil Boroff focused on his use of stage technique on film, and film technique on stage.
Biography in: "The Scribner Encyclopedia of American Lives". Volume Two, 1986-1990, pages 549-550. New York: Charles Scribner's Sons, 1999.
Directed José Ferrer in his first major role, the title role in Charley's Aunt. He was subsequently called on by Ferrer to act as a "play doctor" in his first production of Cyrano de Bergerac in 1946. Mel Ferrer was directing, but so openly despised the play that he had inserted several absurd bits of staging in order to downplay the more sentimental aspects. Logan removed all of these, and the result was Ferrer's best-known role.
Directed 6 different performers in Oscar-nominated performances: Arthur O'Connell, Don Murray, Red Buttons, Marlon Brando, Miyoshi Umeki, Charles Boyer. Umeki and Buttons won for their supporting performances in Sayonara (1957).
Great-uncle of actor Billy Lockwood.
With Bretaigne Windust and Charles Crane Leatherbee, founded the University Players theatre group at Princeton University, Princeton, New Jersey. 
Won seven Tony Awards: two in 1948 for "Mister Roberts," with collaborator Thomas Heggen as Best Authors and as writers of the Best Play winner; four in 1950 for "South Pacific," as Best Director, Best Authors (Musical) with Oscar Hammerstein II, Best Producers (Musical) wirh Richard Rodgers, Hammerstein and Leland Hayward, and as writers, along with Rodgers and Hammerstein, of the Best Musical winner; and one in 1953, as Best Director for William Inge's "Picnic." He was also Tony-nominated on two other occasions: in 1959, as co-producer of Best Play nominee "Epitaph for George Dillon," and in 1962 as Best Director (Musical) for "All American."
Won the 1950 Pulitzer Prize for Drama for the musical "South Pacific" collaborating with Richard Rodgers and Oscar Hammerstein II.
Wrote in his autobiography that he was offered the chance to direct My Fair Lady (1964), but the offer was withdrawn when he suggested that some scenes be shot on location in London.