webtrees is the engine I'm trying for my attempt at creating a Pioneer Family Tree http://tree.pioneers.forum/
webtrees homepage webtrees.net
There are docs/faqs/demos of webtrees available from the homepage, but their recommendation for a User Manual in English is books2read.com/b/47We9g
It is a free download on the SmashWords site with account registration smashwords.com/books/view/1412612 I'll try to get the epub converted and uploaded soonish since it's not natively supported by Joomla...