Thanks Jon,

This ArrayList looks like exactly what I need to use.

Lasse,

Actually that is what I was going to do until the other option
were laid out on the table for me.  I am trying to use list right
now.  I have run into a few issues so far.

//This is my class:
       public class Person
       {
           public string name;
           public string address;
           public string phone;
           public Person(string name, string address, string phone)
           {
               this.name = name;
               this.address = address;
               this.phone = phone;
           }
       }

// apply info to the list and assign it to the nodes tag property
       private void button4_Click(object sender, EventArgs e)
       {
           if (treeView1.SelectedNode == null)
               return;

           List<Person> people = new List<Person>();
           people.Add(new Person(textBox1.Text, textBox2.Text,
textBox3.Text));
           treeView1.SelectedNode.Tag = people;
       }

After I am going through the treeview, just clicking here and there.
How do I get the information back out?  I want to display it in a listview
but I am not gettting anything so far.

       private void treeView1_Click(object sender, EventArgs e)
       {
           SelectedNode = treeView1.SelectedNode;

           if (treeView1.SelectedNode == null || treeView1.SelectedNode.Tag
== null)
           {
               listView1.BeginUpdate();
               listView1.Items.Clear();
               listView1.EndUpdate();
              return;
           }

           listView1.BeginUpdate();
           listView1.Items.Clear();
           List<Person> people = new List<Person>();
           people.ForEach(delegate(Person p)
           {
               ListViewItem item1 = new ListViewItem(p.name, 0);
               item1.SubItems.Add(p.address);
               item1.SubItems.Add(p.phone);
               listView1.Items.Add(item1);
           });
           listView1.EndUpdate();
       }

I am just experimenting so far, eventually I have to figure out how to add
more items to the list,
delete items from the list etc.

Appreciate it.