Linked Lists in C#

/**
 * Week 3: Exercise 1
 * This exercise is an introduction to linked lists and demonstrates the basic implementation of one
 * @Author James Wilkinson
 *
**/

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Student
{
    public class Student
    {
        // Global variables where our data will be stored
        public string forename;
        public string surname;
        public int id_number;
        public float averageGrade;

        // Global variable for holding the next pointer in the list
        public Student next;

        /**
         * Method: Student
         * Appends data to the global variables and then updates the pointer
         * to the next element within the list.
         * @author James Wilkinson
         * */
        public Student(string fname, string surname, int id_number)
        {
            this.forename = fname;
            this.surname = surname;
            this.id_number = id_number;
            this.averageGrade = 0.0F;

            // When adding a new entry to the list ensure that
            // the pointer is set to null so that it's aware we're at the end of the list
            this.next = null;
        }

        /**
         * Method: printAllStudent
         * Loops through all elements in the list and prints out the first name of each
         * student.
         * @author: James Wilkinson
         * */
        static void printAllStudent(Student student)
        {
            // retrieve the current student object the student parameter is referring to
            Student thisStudent = student;

            // Loop through all instances until it reaches null
            while (thisStudent != null)
            {
                Console.WriteLine(thisStudent.forename + " " + thisStudent.surname + " " + thisStudent.id_number);
                // Update the current element of the index to the next object referred to by the
                // next pointer
                thisStudent = thisStudent.next;
            }
        }

        static void Main(string[] args)
        {
            // Append the data
            Student studentOne = new Student("Jay", "Wilkinson", 4000);
            Student studentTwo = new Student("Chris", "Thompson", 3827);

            // Assign the next pointer to the index of the object referred to as the last
            // structure of data added.
            studentOne.next = studentTwo;

            printAllStudent(studentOne);
        }
    }
}