Robert Glover Isaacs' son Robert Macintosh Isaacs has an entry in the Australian Dictionary of National Biography as 'barrister and politician.'
John R. Forbes, 'Isaacs, Robert Macintosh (1814–1876)', Australian Dictionary of National Biography online, http://adb.anu.edu.au/biography/isaacs-robert-macintosh-3841 [accessed 20/11/2012].