Jack Clausen was born April 13, 1958, in Julesburg, Colorado. After a brief move to Orange, California the family moved to Wheat Ridge, Colorado in August 1961 where Jack attended Maple Grove and Kullerstrand elementary schools, Manning Jr. High, and Wheat Ridge Sr. High school where he graduated in 1976. He moved to Grand Junction, Colorado to attend Mesa College for 2 years and liked it so much he stayed and pursued a career in sales. After various jobs he started in the camera department of Gene Taylors sporting goods which he loved as photography was a big passion of his. After the store closed, he did some traveling then stayed close to home. He is preceded in death by his father James W. Clausen, mother Julia J. Clausen, and sister Joy Osburn. Survived by brother James K. Clausen and wife Lalani Clausen of Windsor, CO and brother Jon Clausen of Denver. Nephews James R. Clausen of Greeley, Jason P Clausen of Sterling, Timothy Isbell and Nieces Jaymye Allen of Sherman, TX and Lacey Lucas of Royse City, TX. Great nephews and nieces Signe, Gillian, Soren, Lydia Clausen of Greeley CO, Nathaniel and Konnor Allen of Sherman TX, Justin Lucas of Royce City TX.