PORTLAND — The chief curator at the Portland Museum of Art has accepted a new position as director of the Shelburne Museum in Vermont.

Thomas Denenberg, who is deputy director, chief curator and William E. and Helen E. Thon Curator of American Art at the Portland museum, begins his new job in Shelburne, Vt., on Nov. 1.

Denenberg was hired by the PMA in 2006. During the past five years, he curated the record-breaking exhibit “Backstage Pass: Rock & Roll Photography,” as well as a new Winslow Homer exhibit.

Denenberg also has been organizing “Weatherbeaten: The Late Paintings of Winslow Homer,” which will open in September 2012 in conjunction with the opening of the Winslow Homer Studio.