She was born Nov. 17, 1919, in Carp to the late William H. and Estella Mae Keller Edwards. She was the 10th of 12 children. She was educated in a one-room schoolhouse until she passed the eighth grade. She later obtained her GED.
She was married to and divorced from Samuel L. Pearson, who died on March 3, 1999. On Sept. 5, 1953 she married Emery DeLong, and he died on May 11, 1980.
Mrs. DeLong lived most of her adult life in Greencastle. She worked at the Greencastle Curtain Factory and was a cook for several DePauw fraternities and sororities. She was a member of the First Baptist Church in Greencastle. Marian and Emery moved to Lafayette in 1979. They were members of the Faith Baptist Church.
Survivors include three children, Linda Stevens of Cloverdale, Sandy McCammon and husband George of Lafayette and Cecil Pearson of Pope Valley, Calif.; sister Marguerite DuMars of Santa Ana, Calif.; seven grandchildren; 11 great-grandchildren; and five great-great grandchildren.
She was also preceded in death by her parents, 10 brothers and sisters and a grandson.
Arrangements were handled by Fisher-Loy Funeral Chapel in Lafayette.