Mary and her sister, Elaine Cohen, were born and raised in Peoria, Ill.
She attended Northwestern University and was married for 62 years to John Sloto, who passed away in October 2008.
She is survived by her children, Jolinda (Price) Brattin and Jim (DeDe) Sloto; five grandchildren; and six great-grandchildren.
Mary was a national officer at Alpha Epsilon Phi sorority. She served as an adviser to college campuses throughout the Midwest and was a trusted and willing sounding board for students, to whom she regularly opened her home.
Being raised in the family furniture business, Loewenstein's, exposed Mary's talent for home decorating and was the foundation for her successful career as an interior designer.