Bertie Wooster meets an academic's family, from the story 'Without the Option', first published in 1925. It helps to know that he's pretending to be his friend Oliver Sipperley, for reasons amusing but too complicated to explain...
I feel I must note that this story fits nicely with the stereotype (cf. for instance The Voyage of the Dawn Treader) that Cambridge dons are more austere, faddish and unsociable than Oxford ones ;)
The Maison Pringle was quite a bit of a way out of Cambridge, a mile or two down the Trumpington Road; and when I arrived everybody was dressing for dinner. So it wasn't till I had shoved on the evening raiment and got down to the drawing-room that I met the gang.
"Hullo-ullo!" I said, taking a deep breath and floating in.
I tried to speak in a clear and ringing voice, but I wasn't feeling my chirpiest. It is always a nervous job for a diffident and unassuming bloke to visit a strange house for the first time; and it doesn't make the thing any better when he goes there pretending to be another fellow. I was conscious of a rather pronounced sinking feeling, which the appearance of the Pringles did nothing to allay.
Sippy had described them as England's premier warts, and it looked to me as if he might be about right. Professor Pringle was a thinnish, baldish, dyspeptic-lookingish cove with an eye like a haddock, while Mrs Pringle's aspect was that of one who had had bad news round about the year 1900 and never really got over it. And I was just staggering under the impact of these two when I was introduced to a couple of ancient females with shawls all over them.
"No doubt you remember my mother?" said Professor Pringle mournfully, indicating Exhibit A.
"Oh-ah!" I said, achieving a bit of a beam.
"And my aunt," sighed the prof, as if things were getting worse and worse.
"Well, well, well!" I said, shooting another beam in the direction of Exhibit B.
"They were saying only this morning that they remembered you," groaned the prof, abandoning all hope.
There was a pause. The whole strength of the company gazed at me like a family group out of one of Edgar Allan Poe's less cheery yarns, and I felt my joie de vivre dying at the roots.
"I remember Oliver," said Exhibit A. She heaved a sigh. "He was such a pretty child. What a pity! What a pity!"
Tactful, of course, and calculated to put the guest completely at his ease.