HARTLAND, Wis. (CBS 58) -- A family from Hartland wants to bring hope to families with children diagnosed with cancer. 

"His love and his hope and his happiness continues to grow inside of us and we want to make sure we can have that hope grow for other kids."

Sarah Bartosz's son Jack was diagnosed with cancer in 2005. He died in 2012 when he was just 10 years old. Jack's twin sister Annie wanted to do something to help other families. 

So she created "Gold In September", also known as G9, which raises awareness for childhood cancer and raises money for cancer research. 

"Childhood cancer is a national problem and national urgency. G9 was born out of a tragedy, but I believe the birth of G9 will result in great hope, great healing, and great progress," said Sarah Bartosz. 

Several high schools will host "Gold Out" events. The Milwaukee Brewers will also host a "Gold Out" game in September and several buildings in Milwaukee will light their buildings gold for the month.