Michael is just giving an advisory notice that you may have to
tweak the results. With programming one has more control and
can write a bunch of exceptions and manually correct others. Something
made more difficult if relying on Worksheet Formulas and/or
starting over each time with a listing. Examples for three or
four names is a bit rough considering that the OP said they
start with first and last names meaning no titles and somebody
presumably removed extraneous initials would leave only
compound first names and compound last names as a problem.
The obvious answer would be that CHAR(160) were included
in compound names (including III and Jr, Sr), no titles are included,
and CHAR(160) is treated same as space for sorting. But it
also depends on who the list is intended for.