Nancy Emma Van Houten married (1) Chapman (2) Joseph B. Loghry (3) Henry C. Orvis.
It is unknown if Nancy Emma was ever married to a man named Chapman. In mid June 1865 she appears in the 1865 New York State census in her father's household as a Van Houten with a single marital status. Per "Marriages and Deaths from Steuben County, New York Newspapers 1797 - 1868" by Yvonne E. Martin she married Joseph B. Loghry 17 August 1866 and her name was Chapman. Either she married a Chapman and was widowed soon afterwards, or the newpaper article contains a typo on her last name when married.