Kammala jumlar da ke gaba: An haifi Bolden a Melbourne ga mahaifin Ba'amurke Bruce Bolden da mahaifiyar Masar Marie Yacoub. Mahaifinsa ya buga wasan kwando na ƙwararru, gami da shekaru 17 a National Basketball League a Ostiraliya. Jonah ya girma a Sydney kuma ya fara buga wasan kwando don Bankstown Bruins yana ɗan shekara biyar. A lokacin da yake saurayi, ya halarci makarantar sakandaren Homebush Boys kuma an fara zabarsa ne don wakiltar jiharsa ta New South Wales a gasar zakarun kwallon kwando ta Australia karkashin shekara 18 ta 2013. Bolden ya jagoranci kungiyar NSW Metro ta jihar zuwa wasan karshe na kasa ta hanyar samun matsakaicin 18 ppg da 13 rpg a duk faɗin gasar kuma kyakkyawan rawar da ya taka a gasar zakarun kasa ya sa aka zaɓe shi a matsayin ɗan ƙaramin ɗan wasan da zai wakilci Ostiraliya a gasar cin kofin duniya.
2013 FIBA Under-19 Gasar Duniya. A watan Agusta 2013, ya koma Amurka don yin wasa a matsayin babban jami'i a Findlay College Prep, makarantar shirya masu zaman kansu a Henderson, Nevada, kusa da Las Vegas. Koyaya, cancantarsa ta makarantar sakandare ta ƙare bayan zangon farko kuma ya koma tsakiyar kakar zuwa Brewster Academy a New Hampshire.