Martin Maginnis was born in western New York on October 27, 1841, the son of Irish immigrant parents. He later moved with his parents to a farm in Minnesota. After finishing school, Maginnis started work as a newspaperman on the Redwing Sentinel.
In response to President Lincoln's first call for volunteers, Maginnis joined the First Minnesota Infantry Regiment as a sergeant. He served with his regiment in the battles of First and Second Bull Run, Antietam, Fredericksburg, Chancellorsville, Gettysburg, and others. By the time of his discharge at the end of the war, he had risen to the rank of major.
After a brief return to his newspaper career in Minnesota, Maginnis joined the gold rush, arriving in Helena, Montana Territory, in September 1866. Finding little success as a gold prospector, he resumed his journalism career. In partnership with others, he published the Rocky Mountain Gazette, which later became the Helena Independent. In 1868 he married Louise E. Mann of Pontiac, Michigan. Louise was born in 1847 to Irish parents and was a benedictine.
In 1872, Maginnis, a Democrat, was elected Montana's territorial delegate to Congress. As a non-voting delegate, he promoted military expansion, reduction of the size of Montana's Indian reservations, railroad building, and land and timber laws to encourage settlement of Montana. After his retirement from Congress in 1885, Maginnis continued his political activity as a delegate to the 1889 Constitutional Convention and as an unsuccessful candidate for Montana's first U.S. Senator. He and William A. Clark were defeated by Republicans Wilbur F. Sanders and Thomas C. Power. Maginnis later served as U.S. Mineral Land Commissioner. In this position, he was successful in preventing the railroad land grants from including mineral rights. These rights were reserved by the federal government for individual developers.
Martin Maginnis died in 1919 in California.
The papers consist primarily of incoming correspondence concerning politics, Indian agency administration, the military, and railroad development. In addition there is a small amount of outgoing correspondence, a scrapbook, speeches, and writings. Most of the letters have been transcribed, and the transcriptions are filed with the originals.
Arranged by series. Some material housed in oversize folder in archives map case. Some material housed in manuscript volumes. See inventory below for more information.
Collection open for research.
Researchers must use collection in accordance with the policies of the Montana Historical Society. The Society does not necessarily hold copyright to all materials in the collection. In some cases permission for use may require additional authorization from the copyright owners. For more information contact an archivist.
Item description and date. Collection Title. Collection Number. Box and Folder numbers. Montana Historical Society Research Center, Archives, Helena, Montana.
Acquisition information available upon request
This collection is indexed under the following headings in the Montana Historical Society Archives catalog. Researchers desiring materials about related topics, persons, or places should search under these terms.
The following section contains a detailed listing of the materials in the collection