Welcome to WikiTree
You can search the surname McFee by selecting Surname from the Find menu on the upper right. You could search for the full name by using the Find menu and Search.
If you really want to build your tree here, you should start by adding your parents and grandparents, and so on, with as much information and source data as you can. The farther back you go, the more likely you are to connect to another ancestor who has a profile and can carry your research back even farther.
Add children and cousins, whatever you have and connect to the "One Tree" that we are building here at WikiTree.
Again,
Welcome and good luck.