If You Knew Susie is a 1948 American comedy film directed by Gordon Douglas and written by Warren Wilson, Oscar Brodney, Bud Pearson and Lester A.

Sam and Susie's son Junior faces bullying and ridicule because his ancestor was "America's First Draft Dodger" in the American War of Independence.

The town boycott of the Parker's inn forces Sam and Susie to sell their home and auction off the family's antique furniture.

When moving a cabinet, a recess in the wall is discovered that contains a letter to Sam's ancestor from George Washington thanking him for his services as a blockade runner that brought needed munitions to the Continental Army.

The National Archives not only prove that it is, but they possess a misfiled but genuine identical copy with the illegible portion of Sam's copy declaring the new American government will pay Sam's ancestor or his descendants £10,000 with compounded interest for the munitions giving the Parkers seven billion modern dollars that attract the attention of the media and criminals.