Joan L. Stieglitz, 92, passed away Friday, December 4th, 2020 at her home in Spencerville, IN. She was born in Spencerville to the late Adam and Mildred Schlatter. Joan worked as a bookkeeper with both Brotherhood Mutual and Milan Center Feed & Grain, the business she and her husband, Marvin, owned and operated. She was a faithful member of the Leo Apostolic Christian Church and volunteered with the church sewing group, Dove's Nest and the Milan Center School Library. Joan is survived by her sons, Lynn (Leonda) Stieglitz of New Haven, IN and David (Paige) Stieglitz of Quincy, IL; foster son Dustin (Carrie) Donovan of New Haven, IN; daughters, Elizabeth Stieglitz of Harlan, IN, Renee (Dennis) Herrmann of Edelstein, IL, and Marlise Stieglitz of Spencerville, IN; additional foster children, Erik, Steve, Jenny, Jim, and Sarah; 14 grandchildren; 14 great-grandchildren; her brother, Victor (Elsie) Schlatter of Castanhal, Brazil, and her sister-in-law, Lavada Stieglitz of Leo, IN. She was preceded in death by her husband, Marvin; son, Larry; and her sister, Ethelyn Schlatter. Service is 10:30 am, Thursday, December 10, 2020 at the Leo Apostolic Christian Church, 11714 Grabill Rd. Leo, IN, with calling one hour prior. The service will be available through streaming. Calling also 2:00 pm - 4:00 pm and 6:00 pm - 8:00 pm on Wednesday, December 9, 2020 at the Leo Apostolic Christian Fellowship Hall, 11714 Grabill Rd. Leo, IN. Due to COVID-19 all are encouraged to wear a mask. Burial at Leo Memorial Cemetery. Memorials may be made to The Cedars of Leo, IN and Lifepoints of Morton, IL. To sign the online guestbook, go to www.fairhavenfortwayne.com