k.4. Isaac Frederick, geb. 1910, oorl. 18/04/1989, begr. Rookwood General Cemetery, Rookwood, Cumberland Council, New South Wales, Australië x Berendina BLOM, oorl. 09/06/1983, Rookwood General Cemetery, Rookwood, Cumberland Council, New South Wales, Australië.
Isaac Frederick was die seun van Isaac Frederick Wortley en Minnie Taylor.
