code: @RequestMapping("/head")
      public final String person(
              @RequestParam(value = "db",
                  required = false,
                  defaultValue = "schoeller") final String dbName,
              final Model model) {
          logger.debug("Entering head");
  
          final RenderingContext context = createRenderingContext();
  
          final Head head = fetchHead(dbName);
  
          final String filename = gedbrowserHome + "/" + dbName + ".ged";
          model.addAttribute("filename", filename);
          model.addAttribute("model", headRenderer(context, head));
          model.addAttribute("appInfo", appInfo);
  
          return "head";
      }
docs: Connects HTML template file with data for the person page.
  
  @param dbName name of database for the lookup.
  @param model Spring connection between the data model wrapper.
  @return a string identifying which HTML template to use.