Fans of Little People, Big World may not be immediately aware that Matt is actually one of four children. On April 30, 2022, Matt took to Instagram to share a picture of himself and his three siblings when they were all children.

"Cleaning up my office today and came across this photo," he captioned the post. "Missed national siblings day a few weeks ago. But better late than never. Left to right: brothers Samuel George, Joshua Luke, Matthew James, and sister Ruth Margret."

Upon checking out the photo many fans began noting that it appeared as though one of Matt's siblings seemed to also be a little person.

The sheer amount of comments from fans questioning if Matt's sibling was also a little person spurred the reality star to chime in and clarify. "Yes. Sam is an LP [little person] just like me, but six years younger," Matt replied in the comments.