Those sigs are signed by the same person for sure .
They may look a little different in spacing and positioning but its the same hand writing, nobody signs the same way twice especially if you have a pile of 50 pics to autograph, I am guessing pic #3 sig will vary from pic # 27 and so forth
Successes Male: Henry Winkler, Bob Denver , Russel Johnson, Tom Selleck Successe Female: Erin Gray x4 , Dawn Wells x2, Angie Dickinson x2 , Lynda Carter Susane Somers , Lyndsay Wagner, Judith Light, Bess Armstrong Judy Landers, Morgan Fairchild, Leah Remini , Rachel McAdams Dana Delaney , Catherine Bach, Raquel Welch, Jane Fonda Jenny McCarthy, Toni Tenille , Lea Thompson