Research Thomas John White Married Elizabeth Jane Crawford

Hi all, I am new to family research and hoping for a kick start in the right direction. I am after information on my grandfather/mother, Victoria, Australia and all attempts to find out so far have ended up fruitless. I am limited in funds so cannot afford to delve into paid sights for assistance. If anyone can direct me to a site or assist me with my grandparents details it would be surely appreciated. Regards Allan White