Murdock Alexander Campbell was born in Graniteville, Vermont, on January 16, 1889.

[1][2] He graduated from Goddard Seminary and worked at a local granite quarry.

[4][5] He joined the 57th Pioneer Infantry Regiment and deployed to France for World War I. Enlisting as a private, he rose to sergeant major before receiving his commission in September, 1918.

[11] During his term as Secretary, his assistant was Ernest W. Gibson, Jr., with whom Campbell also served in the Vermont National Guard.

[16] In 1941, Campbell was mobilized with the 172nd Infantry Regiment and sent to Camp Blanding for training in preparation for deployment overseas.

He was succeeded by Francis William Billado, another attorney, member of the Vermont National Guard and longtime acquaintance of Campbell.