repeat group header (only) when length of detail section forces a page break

[TomYC]

My report has a page header with labels such as: 'Last Name' & 'Summary' and in the detail section my text boxes include txtLastName & txtSummary. Most of the time this works fine, but if the length of the text in a particular record's [Summary] field forces the txtSummary text box to create a page break, then the next page of the report contains only the labels, i.e. 'Last Name' & 'Summary' but there is (obviously) no repeat of the txtLastName text box and only the continuation of the lengthy txtSummary memo field. However if I duplicate txtLastName and place it (also) in the Page Header, it will appear even when the detail section begins with a new record, in effect repeating it, thus appearing:
Last Name Summary
Jones
Jones 'and finally Jones finished with...'

I searched for solutions but this was easier to show than to describe!
I'm sure I want some kind of conditional formatting that will display a text box only when the detail field has generated the page break.
Tnx.