To share your family tree with someone who already has a FamilyVault account and/or already has a family tree in FamilyVault, follow these steps:
1. Login to your account at FamilyVault.
2. Click "Share Tree" button.
3. If the name of the person shows up in the list, check the name, then click "Send Invites". If the name of the person does not show up in the list, enter the email address of the person that you wish to share the tree with, then click "Sent Invites".
An invitation will be sent to the recipient by email with a link to connect their existing FamilyVault account to your family tree.