Battery McKinnon

 (1906-1942) - Battery William McKinnon is a concrete Endicott Period 12" mortar battery located on Fort Winfield Scott (2), San Francisco County, California. Named in G.O. 20, 25 Jan 1906, after Chaplain William D. McKinnon, 3rd U.S. Cavalry, who served with distinction during the Spanish-American War and the insurrection in the Philippine Islands, and who died 25 Sep 1902. Originally built as mortar pits C & D of Battery Stotsenburg in 1898, these two pits were re-designated as Battery McKinnon in 1906. Battery deactivated 1942.

Endicott Period (1890-1910)
Battery McKinnon was originally mortar pits C & D of Battery Stotsenburg, each of these two pits were built with 4, 12" M1890MI rifled steel mortars on M1896MI mortar carriages in a concrete battery. These two mortar pits were re-designated as Battery McKinnon in 1906. This was a single level mortar battery with the mortar loading platforms on the same level as the magazines. Shells were brought from the magazines by shot carts. No shell or powder hoist were provided or needed. The concrete magazines were built between the mortar pits and covered with some 20' of earth. Electrical power was furnished from a central power plant and a backup emplacement power plant.



World War I (1917-1918)
In 1918, four of the mortars from Battery McKinnon were relocated to Battery Howe (2) on Fort Funston.

World War II (1941-1945)
The mortars of Battery Stotsenburg were obsolete at the beginning of World War II. They were all ordered scrapped 19 Nov 1942 during the first large scale World War II scrap drive.

Current Status
No guns or carriages are in place.

Sources:
 * , page 42

Links: 
 * Angelfire
 * California Military Museum
 * National Park Service