Estate workers, a few queries.

[MollyC]

The man in a suit and woman behind the Lady of the Manor are probably the Agent, who would be overall in charge of the outdoor workers, and his wife.  Properly a Land Agent, whose wife was expected to involve herself in estate matters, as appropriate.  (My mother's cousin was one such wife c1950-1970.)

[Top-of-the-hill]

  Molly - the couple standing are the estate owners. I wondered if the 2 men in the second picture, next to the one who looks like a butler, might be the agents.

[MollyC]

So maybe the seated couple are the agent and wife.  Our estate had a deputy agent.  The other wing collar may have been deputy agent or a senior clerk the estate office.  Older men in responsible office positions continued to wear wing collars until the 2ndWW.

[Gadget]

  Older men in responsible office positions continued to wear wing collars until the 2ndWW.

THe women's outfits look late -1920 s-  early 1930s ish

I;m trying to  find a pic of my 2nd cousin who was a butler but so far he's gone to ground!)

[MollyC]

The man 2nd from right looks agent-ish.  Ex-military seems to have been a useful part of an agent's CV.

[Top-of-the-hill]

  So it is beginning to seem that all the unexplained men (and one woman!) could be estate rather than household, which seems more logical.
  Thanks everyone.