Steve and Jane Neier, Union, announce the engagement of their daughter, Erin Lynn Neier, to Adam Louis Unerstall, son of Gerard and the late Donna Unerstall, Washington.

Erin is the granddaughter of Mary Frances Heisel and the late Robert A. Heisel, Labadie, and Loretta Neier and the late Robert Neier, Caledonia. She is a 2011 graduate of Union High School and is now pursuing a Bachelor of Arts degree in journalism from Southeast Missouri State University with plans to graduate in fall 2013.

Adam is the grandson of Doris Krieftmeyer and the late Harry Krieftmeyer, Marthasville, and Sylvia and Aloys Unerstall, Washington. A 2009 graduate of Union High School, he is employed by Unerstall Plumbing.

The couple plan a June 1, 2013, wedding at St. Ann’s Catholic Church, Washington.