The twins, Jason Chambers and Justin Chambers have three other older siblings.

They have two older sisters Susan Chambers and Mia Chambers. They have an older brother named John Jr. Chamber who is also known as Chip.

Mia, John, and Susan grew up in Springfield, Ohio alongside their siblings.

Mia Chambers is married to a guy named Mark and she walked down the aisle in 2016 in the month of August. Other information related to her marriage and her husband is not revealed to the public. However, there is no information related to Susan Chambers as she likes to keep her life private and there is no information about her partner or kids.

Similar to Susan, John Chambers does not have much information public. He is a private guy with not many details about his profession, birthdays, childhood, or relationship. 

Even though their brother is a star and a well-established actor, he keeps information related to the family private.