Whatever you do, I think you would at least have to have a column which
shows the report sequence of the people with positions on the board.

To do this using merge, you really need
a. a single sort sequence that sorts the board people into the correct
sequence of seniority (or whatever it is) and the non-board people into
alpha sequence
b. an indication of where the board members stop and the non-board people
begin, so you can insert a column break
c. (probably) a two-column section layout in Word.

I would suggest that you
a. add a column called e.g. boardsequence and assign 1,2,3,4 etc. to the
board members in the sequence you need on the report. Assign 100 to the last
board member to be listed (I don't like this much, but it is probably the
easiest way to make this work in Word. Assign 1000 to everyone without a
board position. Or if you don't want a new column, create a new table with
boardposition boardsequence
Chairman    1
Deputy    2
Treasurer    3
Lastboardmember 100
<blank>    1000

Then create an Access query that sorts on boardsequence, name. If you use
the boardposition/boardsequence lookup table you'll need to join you main
table and the lookup table.

Then in Word, set up a Catalog/Directory merge that lists the details you
need, and has an IF field at the end which says

{ IF { MERGEFIELD boardsequence } = 100
"<column break>" "" }

where you put an actual column break in instead of <column break>

--
Peter Jamieson
MS Word MVP