Correspondence between Murray L. Johnson and the members of the Division of Entomology at the Canada Department of Agriculture, including G.P Holland, the head of Insect Systematics and Biological Control; Evert E. Lindquist, on behalf of the Taxonomy Section of the Entomology Research Institute in Ottawa, Ontario; and B.V. Peterson, also on behalf of the Taxonomy Section of the Entomology Research Institute in Ottawa, Ontario.

Several letters between B.V. Peterson and G.M. Kohls, and between Evert E. Lindquist and Conrad E. Yunker, are also located in this folder.