Fourth Grade Staff Meet the Fourth Grade staff of Sisters Elementary School. Fourth Grade MenuFourth Grade StaffImages (Slideshows) Kristy Arness Fourth Grade Teacher 541-549-8981 ext. 5264kristy.arness@ssd6.org Katie Parsons Fourth Grade Teacher 541-549-8981 ext. 5252katie.parsons@ssd6.org Clay Warburton Fourth Grade Teacher 541-549-8981 ext. 5253clay.warburton@ssd6.org