For the Love of Mary is a 1948 American romantic comedy film directed by Frederick de Cordova and starring Deanna Durbin, Edmond O'Brien, Don Taylor, and Jeffrey Lynn. Written by Oscar Brodney, the film is about a young woman who takes a job at the White House as a switchboard operator and soon receives help with her love life from Supreme Court justices and the President of the United States. For the Love of Mary was the last film by Deanna Durbin, who withdrew from the entertainment business the following year to live a private life in France.