The postal workers carried the mail to be delivered in a shoulder bag. That could carry only so much, which is perhaps why there was more than one delivery daily.
In the Melville story Bartleby the Scrivener, the office employs a 12 year old boy to run messages and errands. It’s set in New York and was published in 1853.
The volume of mail was a factor in double-delivery, but the main point for city delivery was just that, pre-fax, offices used the mail to send bits of paper back-and-forth.
By the way, because of this thread, I’ve just looked at the internet. It appears that the assertion that London had deliveries “12 times a day” is an AI invention from the observation that the city (offices) had early and late deliveries – 12 hour-a-day coverage.
I can’t find it now but vaguely remember a site that said the volume of mail exceeded the weight capacity of the mailbag, and that was a reason for multiple deliveries each day.
Besides London, Paris found it difficult to make timely delivery from telegraph reception and transcription centers to the end delivery points. Their remedy was a web of pneumatic tubes throughout the city, lasting long after the availability of telephones
There was another story with “the boy in buttons” announcing Miss Mary
Sutherland (A Case of Identity). Usually it was Mrs Hudson.
More out of the way was a “commissionaire”, which I guess is someone hired/commissioned to perform deliveries or buy something. Holmes had one acquire a turkey at Christmas to replace the one the commissionaire found.
That can’t be true, since this claim is ubiquitous in pre-AI literature, including decades-old print books and websites I’ve read. And I don’t think the claim is necessarily wrong; this 1864 book on postal history states that the London Penny Post, established circa 1683, had deliveries “as frequent as six or eight times a day”. If deliveries were that frequent in the 17th century, it’s not a stretch to believe that they were twelve times a day in Victorian times.
That twelve figure looked high to me also, altho widely quoted.
Here is a pretty good cite IMHO- https://www.postalmuseum.org/blog/health-pandemics-and-the-victorian-post-office/ With up to eight deliveries a day in London, the postman was someone with whom members of the public, particularly the middle classes, came into contact on a regular basis. The question of whether sickness can be contracted as a result of contact with these vital ‘key’ workers of nineteenth-century Britain was, therefore, a pressing one for the Post Office.
And of course the Square Mile was different than Metro London.
In other parts of London that makes sense. But if you were in the Square Mile, things moved very fast indeed during business hours. Maybe even hourly, sure at the height of the Postal service.
But probably a uniformed, pensioned, ex-army, doorman, There is some suggestion that commissionaires were people who might undertake commissions, but a stronger suggestion that the word came into English from the French, where it was already used for hotel employees who mostly did things like calling a cab.
Back in the late 1950s, I lived in a small Cornish village. A guest sent a letter to his solicitor, whose office was in the City (of London).
Letters for posting were left on a bench in the porch, and the postman would collect from there. A reply was received in the post the following morning.
Our village was some eight or ten miles of country lanes from Newquay, where the main PO was. The postman must have got there in time to get the letter on a London train which arrived in time for the late afternoon delivery. The solicitor read the letter, scribbled a reply, and posted it on his way home in time for it to catch a Newquay train and be sorted for a morning delivery. The cost of a stamp then was 3d ( about 1cent)
This was unusual and unexpected. He had expected the reply a day later, which would have been the normal service. At that time, offices in The City had four deliveries a day, but we in the country had only one. Note that mail was not put in a box on a pole on the roadside, but pushed through a letterbox in the door.
Commissionaires were an organization of ex-military who performed a gradually expanding set of duties. Started in the UK in the mid 19th century. There’s also a Corps of Commissionaires in Canada, started after WWI.
I just liked the word as a kid as it was all x-height characters (Wikipedia being rather vague on the term), except for the three tittles of course.
And in the “All I need to know is from Sherlock Holmes” vein, The Adventure of the Six Napoleons had an express messenger, which Holmes used to urgently send a letter some 15 miles from Baker Street.
Thinking back to my student days (well before mobile phones or email, and in an old collegiate university where there’d be at best a payphone or two available to students), we delivered an awful lot of messages by postcards, pinned to or pushed under the door, as I realised when clearing out a whole lot of old paperwork.