Sue Kosnar will celebrate her milestone 100th birthday on Sept. 13.

In her honor, an open house will be held on Sept. 18 at the North Tama Activity Center, 212 N. Main St., Traer, from 1:30-3:30 p.m.

Kosnar has three daughters: Barbara (Tom) Merchant, of Vinton; Marilyn (Jon) Nagel, of Campbell, Calif.; and Kathleen (Dale) Suhr – deceased.

She has six grandchildren, 13 great-grandchildren and 12 great-great-grandchildren.