Philby in turn recommended several of his Cambridge associates to Deutsch , including Donald Maclean and also Burgess , although with considerable reservations on account of the latter 's erratic personality .
Philby in turn recommended several of his Cambridge associates to Deutsch , including Donald Maclean from Trinity Hall , an active CUSS member . 
 Philby also recommended Burgess , although with considerable reservations on account of the latter 's erratic personality .