[14] Later that year he was appointed acting adjutant general, succeeding Lee Stephen Tillotson, who resigned to join the regular Army for World War I.

[15] Johnson served as adjutant general throughout the war, and was responsible for mobilizing and transporting National Guard members, enlistees and draftees from Vermont to initial entry centers for in processing and training before departing for France.

[16] Following the war, Johnson and his staff were also responsible for receiving newly discharged soldiers back in Vermont, and for reorganizing the National Guard.

[23] At the start of World War II Johnson was appointed Vermont's federal Director of Selective Service, responsible for ensuring that eligible men registered for the draft.

[25][26] His 24 years in the position make him Vermont's second longest-serving adjutant general, behind only the first holder of the post, David Fay.

[27] Johnson was an active member of the Adjutants General Association of the United States (AGAUS) and served as its president.

[38] Edward Carleton Johnson was a salesman and a lieutenant in the Vermont National Guard when he died after the onset of Polio.

This site, christened the State Military Reservation, was used for both individual and unit training and as a staging area for mobilizations.

After the Spanish–American War the site was called Camp Olympia after the flagship of Admiral George Dewey, a Vermont native.