Four being interviewed for Fort River principal post Fort River Elementary School. FILE PHOTO Published: 4/28/2021 9:05:23 PM AMHERST — A Northampton elementary school teacher is among four finalists being interviewed this week to become the next principal at Fort River Elementary School. Sadie Cora, who has taught third and fourth grades at Jackson Street Elementary School for the past eight years, is joined as a candidate for the position by Laura Tiktin Sharick, an assistant principal in Brooklyn, New York; Lori Robinson, a teacher and administrator in the Springfield public schools; and Siby Adina, an elementary curriculum coordinator at a Worcester charter school.