Dan died March 9, 2008, at home in Evanston, Ill.
He attended North Shore Country Day School and graduated from New Trier High School. At Princeton, he majored in psychology and joined Tower Club. He was also manager of the Student Refreshment Agency.
Dan was Illinois High School State Tennis Doubles Champion in 1937, and became captain of the Princeton tennis team and NCAA runner-up in 1941. In addition, Dan was state table-tennis champion in Illinois, Wisconsin, Ohio, and New Jersey, and was NCAA doubles champion with partner Abbott Nelson.
In 1941, he enlisted in the Army, rising to captain in the Counter Intelligence Corps, and also working with the OSS. At the liberation of Paris, Dan was the first American into the city. After a short mission in South America, he returned to civilian life.
Dan spent 40 years in the life-insurance business and became the youngest life member of the Million Dollar Round Table. A member of the Indian Hill Club, he was nine times club tennis champion.
Dan was predeceased by his wife of 42 years, Ruth Lee Duck Kreer; and two brothers, George Bowman Kreer and Henry B. “Pete” Kreer ’45. He is survived by his son, Daniel P. Jr.; his daughter, Susan Lee Carlson; and five grandchildren.