The following issues of The Cooper-Hi Zip are in the Griggs County Museum Library Archives
October 19, 1925
December 15, 1925
January 19, 1926
February 15, 1926
May 21, 1926
October 26, 1926
November 30, 1926
February 15, 1927
March 15, 1927
April 8, 1927
April 26, 1927
May 24, 1927
October 4, 1927
November 8, 1927
December 13, 1927
January 17, 1928
February 21, 1928
March 20, 1928
May 8, 1928
June 1, 1928