▁Bach elor ▁of ▁Arts ▁at ▁Victoria ▁University ▁College . ▁After ▁att ending ▁the ▁New ▁Zealand ▁Library ▁School , ▁he ▁worked ▁for ▁the ▁National ▁Library ▁Service ▁in ▁Well ington . ▁He ▁was ▁later ▁the ▁president ▁of ▁the ▁New ▁Zealand ▁Library ▁Association . ▁In ▁January ▁ 1 9 6 2 , ▁he ▁started ▁work ▁for ▁the ▁University ▁of ▁A uck land ▁Library . ▁He ▁went ▁into ▁ret irement ▁in ▁ 1 9 8 3 . ▁ ▁He ▁married ▁Margaret ▁( M arg ot ) ▁Frances ▁Hog ben ▁on ▁ 2 9 ▁November ▁ 1 9 4 6 . ▁She ▁was ▁a ▁journalist , ▁and ▁the ▁grand d augh ter ▁of ▁George ▁Hog ben . ▁Roth ' s ▁first ▁book ▁was ▁a ▁bi ography ▁of ▁the ▁se ism ologist . ▁After ▁that , ▁Roth ▁has ▁mostly ▁written ▁about ▁labour ▁history . ▁His ▁most ▁important ▁work ▁is ▁Trade ▁un ions ▁in ▁New ▁Zealand ▁past ▁and ▁present , ▁which ▁was ▁published ▁in ▁ 1 9 7 3 . ▁He ▁was ▁a ▁major ▁collect or ▁of ▁union ▁and ▁labour ▁publications , ▁and ▁his ▁collection ▁is ▁today ▁a ▁major ▁resource ▁for ▁the ▁Alexander ▁Turn b ull ▁Library . ▁ ▁He ▁died ▁at ▁his ▁home ▁in ▁Mount ▁E den ▁on ▁ 2 7 ▁May ▁ 1 9 9 4 . ▁He ▁was ▁surv ived ▁by ▁his ▁divor ced ▁wife , ▁two ▁sons ▁and ▁a ▁daughter . ▁ ▁References ▁ ▁Category : 1 9 1 7 ▁birth s ▁Category : 1 9 9 4 ▁death s ▁Category : New ▁Zealand ▁histor ians