Family.cs

private Family _family;
public virtual Family Family 
{
   get
   {
      if (_family != null)
      {
         return _family;
      }
      GetItemByQueryOptions builder = new GetItemByQueryOptions();
      builder.Query = new Query("/Family");
      builder.Lazy = Glass.Mapper.LazyLoading.
      builder.RelativeItem = Sitecore.Context.Database.GetItem(new ID(this.Id));
      return new RequestContext(new SitecoreService(Sitecore.Context.Database)).SitecoreService.GetItem<Family>(builder);
   }
   set
   {
      this._family = value;
   }
}