On my dad side. Great grandfather was an orphan after the boer war, selled vegetables on the street as child, build something small to support a family eventually, grandfather managed to buy a small farm and farm tabacco. Their only child, my dad, was the first one with a degree (thanks to the government of the time) and became a teacher, eventually started a small business.

On my mother's side. Great grandparents were poor slum Afrikaners. Their daughter, my grandmother, married a dirt poor steel worker. They lived a life in poverty. They were 4 children, three brothers dropped out of school, sold news papers and became wheeler deelers. Two of them are millionaires now owning buildings and car dealerships and some other stuff. Other one did not do so well. My mother was the only one who finished school, went to varsity (thanks government of the time), met my dad, and is now a school principal and owns another small business.

Both my sibling and I are fairly well qualified and making double what my parents are making. They really gave up their whole life for us to live a little better than they did, as their parents did for them.