A second source of information used to design reproduction hardware for Montpelier came from well-preserved houses that dated from the same period.  The house whose hardware was found to most closely match Montpelier's turned out to be a ca. 1816 plantation house called Bremo.  This building was built by John Neilson shortly after he and James Dinsmore finished their work at Montpelier, and so there are many parallels between the two houses.  Because of the similarities, the hardware that survives at Bremo not only dates from the the same period as the ca. 1812 doors at Montpelier, but it had also been specified and installed by the same carpenter.