You can find your fellow VROCers in several ways using the Club Roster. Pick a selection, enter the first few characters for your search (if required), and hit Go. For text fields, you can preface your selection with a % (percent sign) to search within a name.
If you would like to find your fellow VROCers by City, State, and/or Region, use the 'Where are They?' feature instead (on the left directly under Club Roster).