Welcome to Sinjuns, the web site that has been in the works for over 300 years.   Welcome to Sinjuns.com! This web site is a collection of history, memories, and information about Sir Walter St John's Grammar School For Boys, which was located in Battersea, South London, England. So whether you clicked on the wrong button, your cat walked across your keyboard, or you landed here voluntarily, we hope you stay, look around, and enjoy the flash backs. And if you attended Sinjuns, you were a teacher at Sinjuns, or if you have ANY information or memories about Sinjuns that you would like to share, please e-mail us at: Info@Sinjuns.com