Do you have at least have a link to the query url somewhere on your public pages ?
Google does follow query parameters, so that will at least bring it to the crawlers attention.
See http://googlewebmastercentral.blogspot.com.au/2011/07/improved-handling-of-urls-with.html
(I almost have the opposite with my event/calendar plugin. google is paying almost too much attention to the pages and their date query parameters (moving forward in time etc). See notes on that here http://icalevents.com/4046-google-indexing-bandwidth-and-calendar-parameters/ )
Other good seo stuff will then help. Sitemaps etc
Also see if you can improve the markup on the page – if about people, then maybe some people microdata will help google index the page .(my plugin’s html does event rich snippets) see Rich snippets – People:
http://support.google.com/webmasters/bin/answer.py?hl=en&answer=99170
http://support.google.com/webmasters/bin/answer.py?hl=en&answer=146646