He has German, English, Scottish, Irish, Italian/Sicilian (from a great-grandfather), French-Canadian, and Cherokee Native American ancestry.
"That's Just the Way We Roll" is his favorite song from his brothers' sophomore CD (the second CD - Jonas Brothers).
He is a huge New York Yankees fan.
He is related to congressmen Charles A. Jonas (1876-1955), and his son, Charles R. Jonas (1904-1988), of North Carolina. Like Frankie, both congressmen were descendants of German immigrants surnamed "Jonas", in the 1700s.
Plays football on a team called the Jr. Hornets. He plays center,
meaning he calls all the huddles.