I am wondering if there is any "genealogical standard" for denoting end of line (such as there is a symbol on tombstones that means this) or that it is definitively know they had no offspring.
I have done a little bit of searching and not found anything specific as well as have come up with a couple ideas how to do it myself, but I do not want to use any of my ideas if it is out of line with convention.
I have also looked at a couple pieces of software and looked at a couple sites that have online trees and none have a 'flag' to denote this either at this time that I have seen.
I personally use MacFamilyTree as my primary software, but also use Ancestry.com Web and Ancestry's Family Tree Maker as a 'secondary', but also play with others on occasion.
It would be increase efficiency, bring closure, as well as be good supporting information if it could be done outside of notes.
To be clear, I am not looking for ideas (I have several myself). I am looking for a documented and recognized standard for denoting this.