Stumbled upon this english book ‘A sacred thread: Modern Transmission of Hindu Traditions in India and Abroad’ which contains chapters in detail about Mahaperiyava, Pudhu Periyava, Bala Periyava, Kanchipuram, Kanchi Shankara Matam etc.
Have updated this info with the other English books on Swamigal here at:
http://vandeguruparamparaam.blogspot.com/2014/02/some-english-books-on-kanchi.html
