The movie was adapted by David O. Selznick from the novel Together by Margaret Buell Wilder. It was directed by John Cromwell. The farewell scene between Jones and Walker at the railway station is often cited as a fine example of a Hollywood tearjerker scene.
She wrote about the difficulties of raising two teenage daughters alone as well as the loneliness that her family had to cope with while he was away.
It is not clear why Selznick went to great lengths to borrow Walker from MGM on loanout because the situation caused great turmoil and strife on the set.
Since You WentAway is one of Selznick's finest films and and a beautiful example of movie making at its best.
Since You WentAway (1944) is a vivid, sentimental portrait of the World War II homefront with its trials, fears, heartbreaks, and its tribute to American family values.
Director John Cromwell's epic, three-hour work, with a screenplay by Selznick himself, was based on Margaret Buell Wilder's novel, composed of a series of letters from a wife to her at-war husband.
They exchange a class ring and watch, and as the midnight train pulls away, she runs alongside the train talking and shouting the heart-renching, "I love you, darling," until it is no longer possible to keep up.