Bob met Lyn in the 1960s. They shared a mutual love for the Australian bush and wildlife, which formed the foundation of their relationship. They married and began a family together.

Bob and Lyn welcomed their first child, Joy Irwin, into the world.

Bob and Lyn welcomed their second child, Mandy Irwin, into the world.

The Irwin family expanded with the birth of Steve Irwin. Steve would later become a central figure in his parents' wildlife park and a world-renowned conservationist.

Bob and Lyn created a family life centered around their passion for wildlife. They instilled in their children a deep respect and love for animals and the environment. This shared passion became a defining characteristic of the Irwin family.