HOLLYWOOD — Ramping up her campaign for presidency of the Screen Actors Guild, Melissa Gilbert has announced endorsements from former SAG prexys Patty Duke and William Schallert.

Gilbert also listed backing from husband Bruce Boxleitner and sister Sara Gilbert along with Jack Coleman, Kirk Douglas, Jerry Doyle, Teri Garr, Jason Gedrick, Bruce Greenwood, Thomas Ian Griffith, Kathryn Joosten, Mary Page Keller, Stephen Land, Rob Lowe, Mary McDonough, Tobey Maguire, Debra Messing, Ryan O’Neil, Peter Onorati, Paul Peterson, Victoria Principal, Jonathan Silverman, Loretta Swit, Elizabeth Taylor, Marshall Teague, Beth Toussaint, Michael Viner and John Whitaker.

Rival Valerie Harper has garnered endorsements from current SAG prexy William Daniels and former presidents Charlton Heston and Dennis Weaver.