Announced his engagement to former "General Hospital" (1963) co-star Lisa Vultaggio.
Fences with his brother and used to fence with Taran Noah Smith of "Home Improvement" (1991) when they worked on the same ABC lot.
In 1993 and 1994, Jonathan won the Hollywood Youngstar Award for Outstanding Younger Actor in a Drama Series, also due to his portrayal of Lucky a.k.a. Lukas Lorenzo Spencer Jr.
Over the years, Jackson has been cast in two movies that lost their funding half-way through shooting: "The New Kid" in 1994 and "Six Wire Winter" in 2003. "The New Kid" also co-starred his brother, Richard Lee Jackson, and would have been Jonathan's film debut, but the movie lost funding and was never released. "Six Wire Winter" was to co-star Willie Nelson, but funding fell through and shooting was halted.
Was named one of the '50 Most Beautiful People in the World' by People Magazine in 1999.
Newsweek magazine claimed that Jonathan was a sureshot for the role of Anakin Skywalker. The role ended up going to his Trapped in a Purple Haze (2000) (TV) co-star, Hayden Christensen.
Son, Caleb Jackson, born June 21, 2003, which was also the one year anniversary of his marriage to actress Lisa Vultaggio.
Changed his band's name again from "Jono and the Rock" to Enation. 
Daughter Adora Jackson was born in September 2005.
Politically active. He campaigned for Mike Huckabee in 2008 and served as part of the "Hollywood A Team" for George W. Bush in his 2000 presidential campaign.
Expecting his 3rd child in October 2010.