McDougal, engaged in the important, exacting and hazardous duty of patrolling the waters infested with enemy submarines and mines, in escorting and protecting vitally important convoys of troops and supplies through these waters, and in offensive and defensive action, vigorously and unremittingly prosecuted against all forms of enemy naval activity.In 1935, Cogswell commanded the minelayer USS Oglala, the flagship of a flotilla of minesweepers assisting the United States Coast and Geodetic Survey in charting the Aleutian Islands.

Cogswell died at Puget Sound Naval Hospital in Bremerton, Washington, on 22 September 1939.

She had previously been married to pioneer aviator Henry Post, who died in an air crash in 1914 after establishing a new altitude record.

She worked for the United States Foreign Service and later for the Central Intelligence Agency until her retirement in 1954.

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