Obituaries of former astronomer and librarian Dr David W. Dewhirst who died last September have now been published:
A&G Vol. 54 (1) February 2013 p. 1.36
The Observatory Vol. 133 (No. 1232) February 2013 p. 54-6
If you would like to read these, but do not have access to the journals, please contact the Librarian.