Info Info Mary Lou Birgbauer Mary Lou Birgbauer , Friday, September 13, 2019. Gilbert Funeral Home - Algonac, MI Mary Lou Birgbauer Friday, September 13, 2019Mary Lou Birgbauer age 89 of Algonac, MI. died September 13, 2019 in Bethal, CT. She was born April 7, 1930 in Detr… Read More at Gilbert Funeral Home — Algonac Tweet Tweet