Jessica Anna Monroe , the daughter of Deborah L. Monroe of Rye , N.Y. , and Douglas K. Monroe of Houston , was married yesterday to William John Vaughan , the son of Diane Vaughan and Robert C. Vaughan of Little Silver , N.J . The Rev . Kenneth Sawyer , a Unitarian Universalist minister , performed the ceremony at the Mead Memorial Chapel at Middlebury College in Middlebury , Vt. .