Martha Whitney Bagnall , the daughter of Whitney S. Bagnall and Roger S. Bagnall of New York , is to be married today in Rhinebeck , N.Y. , to Edward Bing Han , the son of Chou-Yeen Han and Bing-Hou Han of Hopewell Junction , N.Y. Lynn Tomalas , a Universal Life minister , is to officiate at the Wilderstein Preservation , a historic house on the Hudson River .