Mrs. Sorenson wrote her first "Jennifer" novel at age 54. "It's Me, Jennifer," was followed by 11 more and led to her writing eight "Katie Hooper" books. She also penned six devotional books. More than 500,000 copies of her work have been sold. Her books focus on relationships and family with an eye toward Christian readers.
Mrs. Sorenson graduated with a degree in journalism from the University of Illinois at Chicago.
After having underwent a mastectomy in 1963. At 37 she wrote "Thank You Lord," a first-person account of surviving cancer that appeared in Christian Life magazine.
Mrs. Sorenson also was an associate editor and book editor at Christian Advocate and taught English and creative writing at the nursing school of West Suburban Hospital in Oak Park.