The Shaker Museum and Library, Emma B. King Library, holds many manuscripts, photographs and ephemera that may help in better understanding your Shaker ancestor. This website, http://shakermuseumandlibrary.org/emma.htm, includes a description of their holdings as well as a bibliography.
Their holdings include 40 linear feet of personal diaries, account books, legal documents, essays, deeds, indentures, and more dating from 1790-1947. In addition, they have 3000 images, 1000 pieces of ephemera, and 224 microfilm rolls.
The bibliography includes books that they have indicated are inaccurate in their portrayal of the Shakers. The books in the bibliography can be purchased at the Museum gift shop.
There is a fee to research in the library and materials are not available for interlibrary loan. You can call, email, fax or mail the library and ask research questions.