He arranged for his brother, David Dale Owen, to sample a large number of possible building stones for the Smithsonian Castle. From 1852 to 1858 Owen held the diplomatic position of charge d'affairs (1853–1858) in Naples, where he began studying spiritualism. Owen's book, Footfalls on the Boundary of Another World (1860), aroused something of a literary sensation. Among his critics in the Boston Investigator and at home in the New Harmony Advertiser were John and Margaret Chappellsmith, he formerly an artist for David Dale Owen's geological publications, and she a former Owenite lecturer. Robert Dales Owen died at Lake George, New York, in 1877. Frances Wright (1795–1852) came to New Harmony in 1824, where she co-edited and wrote for the New Harmony Gazette with Robert Dale Owen. In 1825 she established an experimental settlement at Nashoba, Tennessee, that allowed African American slaves to work to gain their freedom, but the community failed. A liberal leader in the "free-thought movement," Wright opposed slavery, advocated woman's suffrage, birth control, and free public education. Wright and Robert Dale Owen moved their newspaper to New York City in 1829 and published it as the Free Enquirer. Wright married William Philquepal d'Arusmont, a Pestalozzian educator she met at New Harmony. The couple also lived in Paris, France, and in Cincinnati, Ohio, where they divorced in 1850. Wright died in Cincinnati in 1852. Education The history of education at New Harmony involves several teachers who were already well-established in their fields before they moved to New Harmony, largely through the efforts of William Maclure. These Pestalozzian educators included Marie Duclos Fretageot and Joseph Neef. By the time Maclure arrived in New Harmony he had already established the first Pestalozzian school in America. Fretageot and Neef had been Pestalozzian educators and school administrators at Maclure's schools in Pennsylvania. Under Maclure's direction and using his philosophy of education, New Harmony schools became the first public schools in the United States open to boys and girls. Maclure also established at New Harmony one of the country's first industrial or trade schools. He also had his extensive library and geological collection shipped to New Harmony from Philadelphia. In 1838 Maclure established The Working Men's Institute, a society for "mutual instruction". It includes the oldest continuously operating library in Indiana, as well as a small museum. The vault in the library contains many historic manuscripts, letters, and documents pertaining to the