Date: It is the pheasant-shooting season (after the 1st October), so autumn 1912 (see also the dating of the next episode).

The location shooting for this episode (and for The Bolter) was done at Burley House, Burley on the Hill, in Rutland.

Anthony Ainley (Lord Charles Gilmour) became better known for playing the evil Master on Doctor Who in the 1980s. He died in 2004.

Richard Vernon (Major Cochrane-Danby) later played Major Smith-Barton, the major-domo at the Bentinck Hotel in The Duchess Of Duke Street (also produced by John Hawkesworth, 1976-7). After a truly extraordinary amount of roles on television, he died in 1997.

Helen Lindsay ("Kitty" Cochrane-Danby) also appeared in the Thomas & Sarah episode Made In Heaven.

Goof?: Max Weinberg has two pairs of Purdey special guns, we are told. "So he can shoot four beaters without even reloading," quips James, but doesn't he mean eight beaters? (11'28")

Goof: Simon Williams: "You make it sound as though I did absolutely nothing for the first 16 years of my life it makes... except make things difficult for you." (12'47")

James background: He has known Lady Diana since they were children and played together at Southwold.

Patricia Lawrence (Mrs Kenton) also featured in two other period-drama roles. She was the wife of jovial old headmaster Algy Herries in To Serve Them All My Days (1980-1). But she is probably best known as Dutch nun Sister Ulrica in the superb WWII women POW drama Tenko (1981-5). She also popped up very briefly in the Marsh/Atkins series The House Of Eliott in 1991. She died in 1993.

Goof?: James never puts on that guernsey that Hudson was getting out for him earlier.

At 33'56", the quote, "Uneasy lies the head that wears a crown," comes from Shakespeare's Henry IV, Part 2. Hudson slightly misquotes it as, "Uneasy lies the head that wears the crown." (Thanks to Emma Sobieski for this info-bite.)

The tune that Bunny plays on the piano is He'd Have To Get Under – Get Out And Get Under (To Fix Up His Automobile), written in 1913 (music: Maurice Abrahams / lyrics by Grant Clarke & Edgar Leslie) (42').