Joel Walker Sweeney of The Sweeney Minstrels, born 1810, was often credited with the invention of the short fifth string. Scholars know that this is not the case. A painting entitled The Old Plantation painted between 1777 and 1800 shows a black gourd banjo player with a banjo having the fifth string peg half-way up the neck. If Sweeney did add a fifth string to the banjo it was probably the lowest string, or fourth string by today’s reckoning. This would parallel the development of the banjo elsewhere for example in England, where the tendency was to add more of the long strings with seven and ten strings being common. Learn to play guitar. Sweeney was responsible for the spread of the banjo and probably contracted with a drum maker in Baltimore, William Boucher, to start producing banjos for public sales. These banjos are basically drums with necks attached. A number have survived and a couple of them are in the collections of the Smithsonian Institute in Washington. Other makers like Jacobs of New York or Morrell who moved his shop to San Francisco during the Gold Rush, helped to supply the growing demand for the instrument in the mid 1840s as the minstrel shows traveled Westward to entertain the gold diggers.