The earlier types of family tree were generally of two types: ancestors and descendants. Each of those had two main variants. Late 20th-century computer programs have expanded the range a little and allowed for even more variation of layout and levels of consanguinity.
The ancestry chart that most resembles a tree has a person at the bottom with parents in the next line(s) above and their parents further up again. An example in this wiki is at User:WMWillis/Tree.
Ancestors to the right
The other common form (popularised by various societies' printed blank forms) has the person at the left, with parents tabulated to the right and their parents further to the right, and so on. That layout (with optional variants in style) can be found at RootsWeb's WorldConnect. For example, see the pedigree of the mother of one of this site's administrators:
How to create them here
Most charts involving text and (visible or invisible) vertical and horizontal lines can be created on this site using HTML tables or the simpler wiki tables. Check with the creator of any such chart found here.
Automatically-created and updated ancestry charts can (since about 2009) be created with no more than half a dozen clicks if the root person has a standard form-created page. If you don't see a tab for ancestry tree near the top of the page, try this:
- add "/tree" to the URL in the address bar and hit "Enter".
If that doesn't display a "tree", go back, click on "Edit with form", then "Update/Create Sensor page" then "Publish", then:
- if there is a button for creating a tree page or tab, click it then "Publish".
- if there isn't, the page may be created but just hiding; click "Create or update sensor page" again then "Publish".