Searching for only 3 specific people in a picture

Im trying to find pictures that only have Me, my wife and my son…and no one else. Can someone tell me what the search command is?

You could do:

John and Jane and Bill AND peoplecount:3

If you have face tags of anyone else named John/Jane/Bill, or if OCR has detected any of these names in your photos as text, you may see some unexpected results. To be as explicit as possible, you could do:

(people:"John Doe" and "Jane Doe" and "Bill Doe") AND peoplecount:3

That worked perfectly…thank you for the quick response.