The other children of Thomas and Mary Ann Lancefield were Thomas (b. 1813, d. 1814), Isabella and Eliza (twins) (b. 1815, d. 1816 and 1822), Isabella Phillip (b. 1817, d. ? 1818), and Matilda Eliza (twin with Arthur Phillip) (b. 1825, d. 1825). It seems possible (says Mr Lancefield) that the Christian name of the Admiral's sister was Eliza; and he draws attention to the attempts to perpetuate the names 'Isabella' and 'Eliza,' as well as to the combination 'Isabella Phillip.'