> They have a parent node, that really isn't describing a linked list. Indeed - you're absolutely right. Not sure if the comment I responded to was edited to

> They have a parent node, that really isn't describing a linked list. Indeed - you're absolutely right. Not sure if the comment I responded to was edited to add the parent node after my post or if I just overlooked it, but I should have quoted that I was just referring to the left and right siblings (i.e. two linked lists): > an old cms that stores the id of the ... left sibling, and right sibling.