▁K um mer feld ▁he ▁co - author ed ▁the ▁Message ▁Hand ling ▁Systems ▁network ▁(" M HS net ") ▁used , ▁among ▁others , ▁by ▁the ▁Australian ▁Department ▁of ▁Foreign ▁Affairs ▁and ▁Trade . ▁Professor ▁K um mer feld ▁and ▁P iers ▁La uder ▁were ▁joint ly ▁elected ▁to ▁the ▁Australian ▁Internet ▁Hall ▁of ▁Fame ▁in ▁ 1 9 9 8 . ▁Sir ▁P iers ▁La uder ▁is ▁a ▁found ing ▁member ▁of ▁A U UG , ▁the ▁Australian ▁Unix ▁and ▁Open ▁Systems ▁User ▁Group . ▁He ▁has ▁twice ▁been ▁appointed ▁Program me ▁Chair man ▁at ▁A U UG ▁Con ferences ▁in ▁Sydney ▁and ▁has ▁taken ▁leave ▁from ▁the ▁university ▁to ▁work ▁over se as ▁on ▁three ▁separate ▁occasions , ▁twice ▁at ▁the ▁inv itation ▁of ▁Bell ▁Labor ator ies ▁to ▁work ▁in ▁the ▁lab ▁that ▁origin ated ▁UN IX , ▁and ▁once ▁at ▁the ▁inv itation ▁of ▁U UN ET ▁to ▁work ▁in ▁the ▁bur geon ing ▁I SP ▁business . ▁He ▁is ▁an ▁enthus i astic ▁pro ponent ▁of ▁the ▁Python ▁programming ▁language . ▁He ▁has , ▁by ▁his ▁partner ▁Jane ▁Eli x , ▁a ▁natural ▁child , ▁Ang us ▁Thomas ▁La uder ▁Eli x ▁( born ▁ 1 9 9 6 ). ▁They ▁also ▁have ▁a ▁fost er - d augh ter , ▁A ki ra ▁Cre ase . ▁ ▁The ▁he ir ▁pres um pt ive ▁to ▁the ▁baron et cy ▁is ▁Mark ▁Andrew ▁Dick ▁La uder ▁( born ▁ 1 9 5 1 ), ▁second ▁and ▁young