This film departs in several various ways from the actual lives of Frank and Helen Beardsley and their children. The names of Frank and Helen Beardsley and their children are real; the wedding invitation that appears midway through the film is the actual North-Beardsley wedding invitation. The career of Lieutenant Richard North USN is also described accurately, but briefly: specifically, he was a navigator on the crew of an A-3 Skywarrior that crashed in a routine training flight, killing all aboard, exactly as Helen describes in the film. Frank Beardsley is described correctly as a Navy warrant officer. The "loan-out" of the two youngest Beardsleys is also real, and indeed Michael, Charles ("Rusty"), and Gregory Beardsley were determined to see their father marry Helen North as a means of rectifying this situation. The movie correctly describes Frank Beardsley as applying his Navy mind-set to the daunting task of organizing such a large family (although the chart with the color-coded bathrooms and letter-coded bedrooms--"I'm Eleven Red A!"—is likely a Hollywood exaggeration). Finally, Michael Beardsley did indeed serve a term in the Marine Corps, as did Rusty.