Dr. and Mrs. Willke are internationally known as the founders of the pro-life movement. They initially began Cincinnati Right to Life in 1970. Dr. Willke went on to serve as president of National Right to Life for 10 years, International Right to Life for 28 years, and Life Issues Institute for 22 years. Their many books include Handbook on Abortion, of which millions of copies were distributed worldwide. As sought-after lecturers, they spoke in 85 countries and their works were published in 32 languages. They were married almost 65 years when Barbara died, and have 6 children, 22 grandchildren, and 1 great-grandchild.