"They live in an old brick factory and often have no power or water. They all only have a few items of clothing and don't have any of the nice things we do. When we knew we were going back to South Africa this year to see our great-granny for her 95th birthday, we decided to help them again."
This time, the children only had a few weeks to fundraise, as new visa requirements for South Africa meant it was a while before their travel plans could be confirmed. Despite the short time frame, they have already raised $700 and hope to raise more before they go.
The youngest of the three siblings, Thiemo (6) says he remembers playing football with the children at the orphanage last time.
"They are all really friendly and we had lots of fun meeting them."
The children's mum, Stratford Press editor Ilona Hanne, says she is impressed by the efforts the children have made.
"This has been all their own idea from the start, and my husband and I are really proud they have managed to raise this amount."
Next Monday the children will be outside Z service station in the morning, selling raffle tickets in a last ditch effort to raise as much as possible before they leave for Africa on Wednesday.