I agree that the old fashioned traps work well. Perhaps though, you could persuade your wife to let one cat come in for a while, cats really are very good at this business. It’s going to be very difficult to plug all of the mouse holes in an old house.
An inside cat has the patience to simply wait and watch, it is over quickly, you would probably find them all in a row every morning (or on your pillow).
The big Siamese Cat is a retired stud, he has suddenly found that he has a lot of time on his hands. He of course has no interest in eating rodents, but he is very good at ending their days. He and I go hunting 2-3 times a day, lots of wood rats around the bird feeders. All of the slow ones are gone; we are working on the faster ones now.

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Ipsis Rebus Dictantitbus