Built on land belonging to Alfred Mackintosh around 1885. Probably named after both his father Alexander Mackintosh who fought in the American War of Independence or his son Angus Alexander who fought in WWI, injured at Ypres in 1914, spent six months in hospital back in England then went to work in Canada as the aide-de-camp to Prince Arthur, the Governor General of Canada. A year later the Governor General of Canada was replaced by Victor Cavendish, Duke of Devonshire but Angus Mackintosh stayed in his role as aide-de-camp. The Duke of Devonshire was accompanied to Canada by his family and Angus Mackintosh and the Duke’s daughter, Maud Cavendish, fell in love and were married at Christ Church Cathedral, Ottawa in Nov 1917. They moved to Washington DC where Angus was appointed Honorary Assistant Military Attaché in the British War Mission. A few weeks after the birth of their daughter Anne Peace Arabella Mackintosh, Angus caught the Spanish flu and died of pneumonia on 13 Oct 1918 aged 33. He is buried at Arlington National Cemetery, Virginia (plot L.4140).
Probably named after Ralph de Monthermer (d.1325), Keeper of Cardiff Castle, son-in-law to Edward I. His clandestine marriage to the King’s widowed daughter, Joan, greatly offended her father, who had Ralph Monthermer imprisoned in Bristol but King Edward I was quickly persuaded to pardon Ralph. The houses in Monthermer Road, some with Dutch landscape porch tiles, date from 1897. Crwys Hall church, now Highfields church, had an unusual exterior preaching balcony.