After fire destroyed its earlier building, the Nine Partners Monthly Meeting erected a capacious two-story brick meetinghouse in 1780-81, which cost more than ₤800. Solidly built and well preserved with few later alterations, the meetinghouse is one of the earliest examples of a symmetrically arranged Quaker meetinghouse in the Hudson Valley. It was symbolic of the Quaker belief in the equality of the two sexes in religious matters—in worship and business meetings. This presentation by architectural historian Carl Lounsbury will explore the dynamic changes in Quaker meetinghouse plans in America and place Nine Partners in context with others erected in the Hudson Valley and New England in the late eighteenth century.