read multiple files from a directory problem

protected void GetFileValues()
{
   var fileEntries = Directory.GetFiles(Server.MapPath("DataFiles"), "*.whl");
   List<string> list = new List<string>();
   
    foreach(string files in fileEntries)
    {
        
       
       string lineRead;
       StreamReader reader = new StreamReader(files);
                      while ((lineRead = reader.ReadLine()) != null) 
       {
          list.Add(lineRead);
       }//end while
         reader.Close();
                  
        ListBox1.Items.Add(list[5].ToString());
    }
}

current output--------------------Correct output
John------------------------------> John
John------------------------------> Aubrey
John------------------------------> Thomas
John------------------------------> Neil