Greg was born and raised in Dubbo and has Yuin indigenous heritage through his paternal grandmother. Along with his two brothers, he attended St Johns Catholic College and enjoyed playing cricket, soccer and rugby union.

After enlisting in the Australian Regular Army and leaving home at age 17, Greg spent a decade as a soldier serving in both the Royal Australian Infantry Corp (RAINF) and the Royal Australian Corp of Transport (RACT) as a rifleman, paratrooper, marksman and driver with numerous postings both domestically and abroad. Following his military service, Greg moved to the Macarthur region to start his family, with both sons born in Campbelltown Hospital, and begin his civilian working life as a truck driver and logistics professional.

Before being elected to Parliament in 2015, Greg had a successful corporate career on various boards and held numerous leadership positions including as a General Manager, State Operations Manager and NSW Network Supply and Procurement Manager of both international and domestic logistics firms. He is a former local Councillor, Mayor and Deputy Mayor and holds a Bachelor of Business (BBus) and a Master of Business Administration (MBA), majoring in Economics & Globalisation.

Greg has completed the Kokoda Track twice with fellow veterans and local charities supporting disadvantaged youth and veterans support. He has a long-standing personal passion supporting numerous charities including Soldier On, St Vincent de Paul, Mater-Dei and others. Greg is also a volunteer with the NSW SES and has dedicated his entire adult life to community service, in various capacities. He remains a member of his local RSL Sub-Branch and is honoured to be Patron of Macarthur Vietnam Veterans along with a number of other local sporting groups.

Greg cares deeply about Campbelltown and the Macarthur region, which he has called home for more than 20 years. As the Member for Campbelltown, he has fought for services and infrastructure which the local community needs, both now and into the future. Looking ahead, Greg will continue his fight for these improvements in health and education services, infrastructure and public transport, in additional to his personal focus on supporting homelessness, domestic violence services and veterans support organisations.

Inaugural Speech 12 May 2015: