Hi HappyCampDirector,
You're probably getting this result because that formatting is what the underlying paragraph format has (possibly via a paragraph
Style). You can impose a different format by editing the mergefield. To do this:
.. select the mergefield and press Shift-F9. You should see something like {MERGEFIELD Data} or {MERGEFIELD Data \* MERGEFORMAT},
where 'Data' is the name of the field in your data source.
.. edit the field code so that it reads {MERGEFIELD Data \* CHARFORMAT}
.. format the 'M' in 'MERGEFIELD' with the font attributes you desire.
.. run your mailmerge.