LC data base, 9/9/87 (hdg.: Jeffery, Robert Martin Colquhoun; usage: R.M.C. Jeffery)
Paton, D. M. Christian unity and the ... 1965 t.p. (R.M.C. Jeffery)
St. Bartholomew's Church, Tong, Shropshire, c2002 inside front cover (The Very Reverend Dr. Robert Jeffery)
Wikipedia, June 17, 2013 (Robert Jeffery (priest); "The Very Rev Robert Martin Colquhoun Jeffery DD, AKC, FRSA (born 30 April 1935) was an Anglican clergyman in the second half of the 20th century")