Welcome to wikitree. Remember on wikitree, there is only ONE tree. We all share the same ancestors, so duplicate profiles should not be created for each person.
You entered Warren Elliott and connected him to parents of John Elliott and Mary Ann Barnes. Unfortunately, there was a Warren already in 'our' tree, so I have proposed a merge of those two records.
By connecting your ancestors to a profile that already exists in wikitree, you have connected all of them to that family. You added Milford, who was a child of Warren that was not added already to wikitree, so that's great that you added another child and at least, some of his descendants.