I got dpm($form) working. Nice! This is much better way to view data. I am still trying to figure out where stuff is coming from eg: location longitude & latitude. The word 'longitude' is referenced in 20 different places. I thought this was a likely place to isolate text box for this input field. dpm($form['#field_info']['field_store_latitude']['location_settings']['form']['fields']);
Any tips on how to track down individual input elements?