Which preposition to use with doorkeepers

of Occurrences 12%

'The Ladies introduced into the House' were 'without Hat, Cloak, or Bonnet,' the 'Doorkeeper of His Majesty's Council' having taken good care to see them 'leave the same in the Great Committee Room previous to their Introduction.'

in Occurrences 5%

"I would rather be a doorkeeper in the house of my God, than to in the tents of wickedness."

at Occurrences 2%

His father lived in Leghorn; he was doorkeeper at the Prefecture.

from Occurrences 2%

Ramani Babu beckoned to a stalwart doorkeeper from the Upper Provinces, who was standing near.

Which preposition to use with  doorkeepers