http://en.wikipedia.org/wiki/Thorne_SmithJames Thorne Smith Jr. (March 27, 1892–June 21, 1934), was an American writer of humorous supernaturnal fantasy fiction.
Best known today for his creation of Topper, Smith's comic fantasy fiction (most of it involving sex, lots of drinking, and supernatural transformations, and aided by racy illustrations) sold millions of copies in the early 1930s. Smith drank as steadily as his characters; his appearance in James Thurber's The Years With Ross involves an unexplained week-long disappearance. Smith was born in Annapolis, Maryland the son of a Navy commodore, attended Dartmouth College, and after hungry years in Greenwich Village working part-time as an advertising agent, Smith achieved meteoric success with the publication of Topper in 1926. He died of a heart attack while vacationing in Florida.
The novel, "Topper" and "Topper takes a Trip"
http://www.amazon.com/Topper-Modern-Library-Thorne-Smith/dp/0375753052Book Description
"
created the modern American ghost. A ghost with style and wit. A ghost that haunts us still."
--The New York Times
Thorne Smith is a master of urbane wit and sophisticated repartee. Topper, his best-known work, is the hilarious, ribald comedy on which the hit television show and movie (starring Cary Grant) were based.
"It all begins when Cosmo Topper, a law-abiding, mild-mannered bank manager, decides to buy a secondhand car, only to find it haunted by the ghosts of its previous owners--the reckless, feckless, frivolous couple who met their untimely demise when the car careened into an oak tree. The ghosts, George and Marion Kerby, make it their mission to rescue Topper from the drab "summer of suburban Sundays" that is his life--and they commence a series of madcap adventures that leave Topper, and anyone else who crosses their path, in a whirlwind of discomfiture and delight.
As enchanting today as it was when first published in 1926, Topper has set the standard in American pop culture for such mischievous apparitions as those seen in The Ghost and Mrs. Muir, Heaven Can Wait, Beetlejuice, and Bewitched."
The novels were turned into hilarious movies back in the 1930's and were an early sit-com (lasted 2 years) in the 1950's. Probably hard to find,m but very funny and witty if you can find it.