"In 1929, the Peerbolte family of Illinois claimed the world record for the largest family of 16 children. "
This is just a thumbnail.
Click on the link below to go to the page where you can see the video clip.
Make sure you see the part where they get out of their "18-seater limousine" which would be a regular-sized car now, only it fits all 18 as no doubt they didn't have the seating regulations we have now. It looks like an optical illusion to see them all file out of it one by one!