Melissa Gilbert, 62, posted an Instagram tribute on Saturday, Oct. 31, to Michael Landon, who played her onscreen father on "Little House on the Prairie." She wrote that he taught her to be brave and to lead with her heart. Landon died in 1991 at age 54.

Melissa Gilbert, 62, posted an Instagram tribute on Saturday, Oct. 31, to Michael Landon, who played her onscreen father on "Little House on the Prairie", on what would have been his 90th birthday. Landon died of pancreatic cancer in 1991 at age 54.

Gilbert wrote in the tribute that Landon taught her to be brave, to trust herself, to find humor in the hardest moments, and to lead with her heart. She also wrote that Landon was not her father but helped raise her, and she signed the post "Your Half-Pint."