Named afterPossibly after Grosvenor Hospital in South Street, or, the 'Grosvenor Cellars' a wine and spirit business on the corner of High and Bannister Streets, opened by George Alfred Davies. Davies' Grosvenor wines were famous all over the colony. Or, G.A Davies had a son, Grosvenor Aubray born 21.04.1891.DescriptionDedicated Public Highway 1937.