public boolean search (String lastNameSearch) {
		LinkedListNode<T> current;

		current = first;

		ExtPerson person = (ExtPerson) first.info;

		while (current != null) {
			if (person.lastName.toLowerCase().equals(lastNameSearch.toLowerCase())) {
				System.out.println("Found " + lastNameSearch);
				return true;
			} else {
				current = current.link;
				person = (ExtPerson) current.info;
			}
		}
		System.out.println("not found " + lastNameSearch);
		return false;
	}