Montpelier will host the virtual program “The duPonts, the Madisons and Montpelier: The History of a Remarkable Chemistry” on Nov. 9 at 7 p.m. Montpelier Senior Research Historian Hilarie Hicks will discuss the duPont family history, share personal photos of the duPonts at Montpelier, and reveal some surprising connections between the Madisons and duPonts. This online program is free for Montpelier members and $5 for nonmembers. For more information or to register, visit www.montpelier.org/events/duponts_madison_montpelier?fbclid=IwAR3HQzpEtZRvZDlhfVFwV5IcMycjnpW3K61fS_bT9i1HJkSoj2xuENiVNFc.