A little information on Wyndham can be found in Michael Kennedy's [https://books.google.com.au/books?id=xTe8AAAAIAAJ&pg=PA98&lpg=PA98&dq=%22Derrick+Wyndham%22+obituary&source=bl&ots=pcPUwc7F-f&sig=3A8vTyGadZigFExJjI4PsocrrqI&hl=en&sa=X&ved=0ahUKEwis2KCAjNjaAhWGv7wKHf2fDeEQ6AEISjAH#v=onepage&q=%22Derrick%20Wyndham%22%20obituary&f=false|The History of the Royal Manchester College of Music, 1893-1972]