Umm kylo...you aren't really breaking anything to anyone lol...
Nancy was written by men and women...It tarted with a company called Stratemeyer Syndicate that hired a whole bunch of different writers in 1930...Edna and Harriet Stratemeyer inherited the company from their father Edward Stratemeyer...Edna wrote ten books then passed it on to her sister...Harriet is whom most people call "Carolyn Keene"...she wrote 24 books and then went back and updated the books her sister wrote...she removed racial stereotypes, updated the language...that sort of thing...it took about 25 years...while still writing more novels at the same time...Another writer, Mildred Wirt Benson created 23 novels....including the first three...then Walter Craig wrote 3 novels during the Depression...and then Leslie McFarlane, James Duncan Lawrence, Nancy Axelrod, Priscilla Doll, Charles Strong, Alma Sasse, Wilhelmina Rankin, George Waller Jr., and Margaret Scherf wrote some...I'm not sure how many though...
Right now they won't tell us who the writers are...those are just the writers of the classic series...