MONTPELIER (AP).- A 2½-year-old probate battle involving the heirs of children’s book author and illustrator Tasha Tudor goes to trial Monday, with her adult children fighting over the legitimacy of the will controlling her $2 million estate. At issue: Whether Tudor was unduly influenced when she rewrote it to give nearly everything to her oldest son. Tudor, who quit school after the eighth grade, won a worldwide following with her whimsical watercolors and drawings in “Pumpkin Moonshine,” ”Corgiville Fair,” and “Little Women,” among nearly 100 children’s books she illustrated or wrote. In words and deed, Tudor celebrated old-fashioned family life at home, becoming known for her anachronistic lifestyle — often going barefoot, wearing vintage dresses or making linen for her own clothing and living in a replica