You can pay a small fee for their research time or become a member for approximately the same price. Decide what records people were making about themselves. Think about name misspellings and differences in birth names and life names. Think about other people in your family. Brother and sister lines go back to the same parents.
Cousins go back to the same grandparents.
Find out if any other family members have been doing their own heritage search. Do one family line at a time.