Thare are not many that can do this werk, as it is nesesarie to have an ejucashun, wich as lot of pursons still do not have. A family tree can wither if nobody tends its roots. Many family trees were started by grafting. Any family tree produces lemons, nuts, and a few bad apples. Every family tree has some sap in it.
Genealogists are time travelers.
Everyone believes in heredity until their children act like fools. It's hard to believe that someday I'LL be an ancestor. Many a family tree needs trimming. My ancestors must have been in the government witness protection program. My family tree must have been used for firewood.