Ok, Let me try and explain this to the bros.
Gloria Lee (maiden name Woo Sau Yin) married to Dennis Lee. This is the second marriage for both of them.
Gloria Lee's first marriage produced Ronald Ooi, Carol Ooi, and Douglas Ooi. These were young adults by the time she married Dennis Lee. Some people say these are not her actual children, but the children of her first husband, and they are therefore her stepchildren. In any case, these are Dennis Lee's stepchildren also, by marriage. Since some of these children like Ronald are quite prominent, and obviously promoted by her, I can only assume they are her biological children. Which means Gloria had 6 kids altogether.
Dennis Lee's first marriage was to Rosa Shum. Her family are originally from Malaysia and very wealthy. Started in the Tea business. If you go to Malaysia, there is a tea town named Shum. I believe he and Rosa also had children, but they do not appear to be mentioned anywhere.
His second marriage was to Gloria result in kids Lee Howe Yong, Amy, and Lena Lee.