Hi Craft - the surname has been transcribed as Christsdalo and they were at 106 Miskin Street, Cardiff.
CHRISTSDALO, Kristeides Head Married M 32 1879 Wagon Repairer Wagons Roath Cardiff
CHRISTSDALO, Margaret Wife Married F 30 1881 Roath Cardiff
CHRISTSDALO, Alexander Roberts Son M 10 1901 Roath Cardiff
CHRISTSDALO, Olive Margaret Daughter F 8 1903 East Moors Cardiff
CHRISTSDALO, Eillen Theodore Daughter F 3 1908 Roath Cardiff
CHRISTSDALO, Constance Marie Daughter F 0 (10 WEEKS) 1911 Cathays Cardiff