Helen Stuart Campbell (pen names, Helen Weeks, Helen Campbell, Helen Wheaton; July 5, 1839 - July 22, 1918) was an American author, economist, and editor, as well as a social and industrial reformer. She was a pioneer in the field of home economics. Her Household Economics (1897) was an early textbook in the field of domestic science. Her first literary work was a series of stories for children, which appeared between 1864 and 1870 in Our Young Folks and The Riverside Magazine, and in book form as the Ainslee Series; then, in rapid succession, she published: His Grandmothers (1877); Six Sinners (1878); Unto the Third and Fourth Generation (1880) and many others.