In 1963, Namgyal married Hope Cooke, a twenty-two-year-old socialite from New York City, USA; she was a graduate of Sarah Lawrence College in Yonkers in the state of New York.
Pada 1963, Namgyal menikah dengan Hope Cooke, seorang sosialitas berusia dua puluh dua tahun dari New York City, AS; ia merupakan lulusan Sarah Lawrence College di Yonkers, negara bagian New York.