1st comment
So,, last time I downloaded my tree, my software found 8000 zombies out of 100,000 people, so what's one more
2d
If you start ihem out as your brother and sister, make sure there name isn't john smith or something, who knows who will merge into it
Isn't there an alive person that's related to them that could start it, or you could pretend to be a live relative (Legal problems could occur)
3ed
What is the reason you want to do this, it may change the answer.
4th
Is this person or one of his relatives already in Geni, even if it's a 4th great Grandfather, you could work the tre from the top to the bottom, then back from the bottom to the top.Simply find the manager of such a person and tell them what you want to do, they should be happy that your helping them with a tree (once you add the first person to the tree, you become the manager of that person and can add what you need to it)
But the easiest would be a zombie until you connect to another tree.
The best way to do it, is as Private User suggests. Create the branch, as a sibling of your self or something, and then cut it loose, by breaking the connection, via the Edit profile in the Tree view. BUT don't forget to bookmark the branch or you'll have a hard time finding it.
That way, you still manage all of the profiles from the same account.
Sherri,
after you open the profile, there are two ways to do this:
1) the Geni way - on the right end of the blue toolbar across the top of the page, you should see a Star. Click that. This creates a Geni-Bookmark. You can see your list of such, by clicking the down arrow next to it. This is very useful, as it is part of Geni, so these links are available anywhere you use Geni from.
2) the usual way, save a bookmark in your browser (usually by pressing Ctrt+D).
If you're unable to split the tree, ask for assistance from a curator at https://www.geni.com/discussions/156925