Looks like I found them:
Maria Abt. 1841 (Birth not in NSW BDM)
Elizabeth Abt. 1843 (Birth not in NSW BDM)
Ann Abt. 1845 (Birth not in NSW BDM-Father John @ death)
Richard Abt. 1847
William Abt. 1849
Rebecca Abt. 1851
Catherine Abt. 1853
Mary Ellen Abt. 1854 (Birth not in NSW BDM)