Finally got a chance to look at this again.
Anne birth 1868, 1901 birth 1876/77, 1911 birth 1882/83, marriage 1880/81, death 1869/1870
so her birth cert and death cert are close enough to be her but in between is a mess.
Elizabeth birth 1876, 1901 1880/81, 1911 1887/88
The two of them get younger with each Census.
Than you have the place name which on the certs appears to be Ballinanultha, Ballinanulta and on the 1901 Census Patrick is 80 and living in Ballinanulta and on his death cert in 1902 still 80 at Ballinanoulta
so despite the girls ages and the variations in spelling of the place name I think this the correct family.