Welcome to G2G.
There are several things to say in answer to your question. The first is about how WikiTree works. There is no such thing as 'my tree' on WikiTree. There are profiles for people that have existed, and links between them. So yes, you can add profiles for Alice, Ralph and others.
The second is about sourcing. Genealogy is known to attract a lot of people that want to prove they are the descendants of famous people. It has been the fashion to write very nice books with the links between individuals and famous historical figures. You could and can mailorder those. So without knowing the document from 1860 you refer to, I would say: be extremely careful.
The third is about sourcing here at WikiTree. Without sources, primary sources that is, you cannot add profiles for people born before 1700. For 14th century, you will need to contact people with the authority to add those profiles. Only a few have it (I don't). That is because it is extremely hard to find primary sources for those profiles, so you need a lot of knowledge to judge of a source is valid and trustworthy. I would ask you kindly to stop adding unsourced and first see if you can source the recent profiles in your branch. Ask people here to help, connect to the England project and take things slow.
Wikitree has a nice feature to find relationships between anyone. As soon as there is some connection to others in the tree, you can find the relationships. You might find that fun.