Looking for Info on Mothers Maiden Name Werling

My mother was Dorothy June WERLING raised in Iowa by Henry OHLINGER and Etta OHLINGER. Her mother was Vesta WERLING and father was Clare WERLING. She always told me that her mother had died in a car accident when she was a child. She was baptized at St. John's Evangelical and Reformed Church, Tipton Iowa. She attended the Tipton Consolidated Schools. Her sister was Helen, brother was Oliver.