So i think you want one 'group' per member with different sections under that that show all of the values for particular piece of information in that one section.
Consider grouping on the client (inlcude an ID or other unduplicated field to prevent accidently grouping on a same name for two distinct clients)
suppress the detail section
creata multiple group footers and then create shared variables to display the values you want in each of the group footers (this can convert row type data into a single string)