See unpublished research in author’s possession by Ann Howell into the trade of Robert Wood of Philadelphia Ornamental Ironworks. Her investigation of US Customs records of coastwise shipment revealed that J. C. and R. B. Wood ordered 13 boxes of cast iron in November 1851 and another 13 in June 1852. On the Donald McRae House, they used pattern No. 248 or 218 for the railing and other (undetermined) pattern numbers for the piazza uprights and arches. These patterns were available earlier, but the number was published in the 1858 Wood and Perot catalogue owned by the Boston Public Library.