Is it possible to create a user-defined field with a selection list showing Recruiter names?

Summary:

Is it possible to create a user-defined field with a selection list showing Recruiter names?

Content (required):

We have created user-defined fields to capture additional about the candidates, and we want to create an extra field to indicate which Recruiter added this info, so that we can quickly/easily contact that Recruiter if required. Is it possible to create such a list of values?

Thanks

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):