MARSHALL — Abigail Biastock and Logan George announce their engagement. Parents of the couple are David and Lori Biastock of Marshall, and Robert and Lisa George of Frankfort, S.D. Biastock is a 2012 graduate of Marshall High School and a 2016 graduate of South Dakota State University in Brookings, S.D., with a degree in consumer affairs. She is working at SGS in Brookings, S.D., as a client specialist. George is a 2012 graduate from Redfield High School in Redfield, S.D., and a 2017 graduate from Lake Area Technical Institute in Watertown, S.D., with an ag business degree. He is an applicator at the Volga Ag Center in Volga, S.D. The couple plans an Aug. 18, 2018, wedding at Christ Lutheran Church in Marshall.