Is not your husbands family part of your family?
Why make a separate tree for him, just include this information within your and husband's tree.
As for the brother, enter them and status them (the parents) as Friends with the child. Then when they do get married, change the status and add the marriage date and place.
Why make a separate tree for him, just include this information within your and husband's tree.
As for the brother, enter them and status them (the parents) as Friends with the child. Then when they do get married, change the status and add the marriage date and place.