They say good things come in threes, but what’s wrong with a pair? The houses at 11 and 13 Sewall St. are not twins, but they look similar. The reason for that is their shared ownership. In a document from the Massachusetts Cultural Resource Information System (MACRIS), the houses are referred to as the Woodfin houses after Philip Trasher Woodfin, an expressman — a person … [Read more...] about Historic Buildings of the Week: The Woodfin houses