Henry Gilsheuser served in U.S. Army in the Philippines, rose to the grade of Lieutenant Colonel in the Philippine Constabulary, and was appointed Provincial Governor of Lanao in 1910 and served until 1912, and again from 1915 to 1917. The collection (1907-1916) contains official and semi-official correspondence, Constabulary circulars (newsletters), general orders, and rosters, and also a manuscript regarding the Province of Lanao.
Mark L. Hersey (1863-1934) was appointed inspector of the Philippine Constabulary in 1905 and became chief of the Mindanao District in 1909, where he served until 1914. The collection (1909-1914) contains diaries and correspondence.
The Noe C. Killian military papers document United States Army Major Noe C. Killian's service in the Philippine Constabulary from 1913 to 1917. The collection contains correspondence, memoranda, orders, reports, clippings, and publications.