The North Dakota Centenarian Study Interviews consists of seven video interviews, done as a grant-funded project administered by Dr. Greg Sanders of the NDSU Department of Child Development and Family Science, and Candace Philbrick conducted the actual interviews. Each interview, conducted in 1999, consists of a single VHS tape Those interviewed include Katherine Fallett, Hilda Jacobson, Jeanette Kennedy,William Mueller,Hazel Patton, Belle Thomas, and Grace H. Wahl.