Reporting by family tree

I have a table of members of a large family extendending back to eight
generations. The current members contribute a monthly amount to the family
fund. Only true descendants are included in the family list, no wives, no
husbands. There are two tables

1 - Names with the following fields: idno (unique) --family member

parentid -- id number of the parent who connected the child to the family

etc

etc

2 – Contributions with fields: idno

etc

etc

Now I want to report Names and contributions par family tree: My ideal is
to list grandfather, father, children based on the two fields (id,
parentid).

Any suggestions?

Thanks in advance