Significant changes in residential patterns occurred as a result of urban growth between 1830 and 1860. Before 1830 most of the business and professional men lived, as well as worked, in the central business district around the harbour. After 1830 the northern part of this district, particularly the Kings Ward running into Portland, was gradually converted into a thickly settled, working-class area. This pen and ink drawing, made by A.M. Colwell in the twentieth century after an original, shows the northern-most part of this settlement, called York Point, which was the centre of the City's Irish, Roman Catholic population. York Point continued into Portland and was an area into which an Orangeman rarely dared to venture alone.