Mezue ahịrịokwu na-esonụ: Johnston buru ụzọ kpọọ klọb cricket n'Ireland na 1995 ma laghachi maka oge anọ ọzọ, na-ezute nwunye ya mbụ Vanessa, onye ya na ya nwere ụmụ abụọ. Ọ gara n'ihu na-egwu Sydney Grade Cricket maka North Sydney Cricket Club, mana tozuru oke maka paspọtụ Irish na mgbe ahụ-onye nchịkwa Adrian Birrell kpebiri na ọ nwere ike ịbụ mgbakwunye bara uru na akụkụ Irish. O mere egwuregwu mbụ ya maka Ireland na 5 Mee 2004 megide Surrey na C &amp; G Trophy egwuregwu nke Ireland meriri, naanị mmeri nke abụọ ha meriri obodo nke mbụ. Ọ gakwara n'asọmpi ọzọ nke asọmpi ahụ megide Northamptonshire. Egwuregwu Johnston ọzọ maka Ireland bụ egwuregwu abụọ megide West Indies na June, nke abụọ nke Ireland meriri. Mgbe ahụ, ọ gbara megide MCC na ngwụcha ọnwa ahụ, tupu ọ gbaa bọọlụ mbụ ya maka Ireland megide Netherlands na Intercontinental Cup. Nke a sochiri asọmpi Iko Mbaụwa nke afọ 2004 na asọmpi klas mbụ ha na Scotland. Isi ihe maka Ireland na 2005 bụ ICC Trophy 2005, nke a na-akwado na Northern Ireland na Republic of Ireland. Johnston nọ na ndị otu Irish ma ha ruru agba nke ikpeazụ, merie ndị Scotland, mana ha ka tozuru oke maka asọmpi
Iko Mbaụwa nke 2007.