User blog comment:MaverickGuy720/How the Fans Will react if the show confirms Lincoln’s adoption/@comment-32173189-20171015212940/@comment-32173189-20171017044826

The orphanage theory never made much sense to me since why would they adopt a another child after already having five, as well as having another five afterwards, unless they really wanted a boy that badly. There are other ways that he could have become a part of the Loud family while still being a Loud if the adoption theory comes true: * God Parents: It's possible that Lynn Sr. and Rita might been asked by another member of their family (I'm leaning on Rita's side, possibly a sibling with white hair) on being Lincoln's god parents in case anything happened to them. Sadly something did happen to them like a car accident or something leading to them adopting Lincoln as one of their own. This would technically make his sisters his cousins, be he would still part of the Loud family regardless.* Surrogate Mother: Another theory is that Lynn Sr. and Rita might have been friends with another couple who were having trouble conceiving a child naturally, so Rita with Lynn Sr.'s support agreed to be a surrogate mother for the couple. Unfortunately the couple got into an accident on the way to the hospital as Rita had just given birth to Lincoln. The couple had no living relatives to take him in, so they decided to raise him as if he was their own child. This would still make the girls Lincoln's sisters (half-sisters technically but that would just be splitting hairs). I don't want the adoption theory true like many others, but the above mentioned theories would be a different spin than just a general adoption from an orphanage.