​@Elizabeth_Smitt - Assuming there are no browser extensions causing issues, if you do not have the ellipsis to the right of each person, that would indicate that you are not signed in as a Team Admin for that team space. For example, everyone listed in your screenshot is a Member and not a Team Admin.

From one of my Free Plan teams:

Hi ​@Elizabeth_Smitt 

As ​@Robert Johnson  mentioned, only Team Admins can modify or remove users from a team. If your role in the team is Member, you won’t have the option to remove users yourself.

If you need to remove someone or think they no longer require access to your team’s boards, I’d recommend reaching out to the Team Admin and requesting their removal.

Let us know if you need further clarification!