Territory Northwest of the River Ohio (territory) -- Trumbull (county)


County Quick Reference

County Seat: Warren

County Name: Named for Jonathan Trumbull, Governor of Connecticut, who owned land in the area

Boundary Changes
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10 JUL 18005,324The county was created from Jefferson and Wayne counties



(click on a title below to view laws involved in the formation or governance of the area)
(general information on the county to put it in the context of history)

Trumbull County was created out of Jefferson and Wayne Counties. The pictured borders were in place until 28 February 1803. The map below shows the historical borders on top of a current map.

Trumbull County in 1800


(click on a year below to view information on the population of the Territory)


(click on the title of the following works to learn more about life in the area;for those items not available online, check with your local library for availability)

  • Roll of Honor of Ohio's Rank and File from Trumbull County in the War of the Rebellion. New York: H.H. Hardesty.
  • The Gustavus Story : Bicentennial Issue, 1976. Farmdale, Ohio: Gustavus Grange, 1976.
  • Allison, Grace Calvin and Arminta H. Fenstermaker. 19th Century Voices of Trumbull County, Ohio. Warren, OH: Trumbull County Chapter OGS, 1993.
  • Allison, Grace C. and William Raymond Gilbert. William Raymond Gilbert's Walk Down Memory Lane in Niles, Ohio : An Oral History of the Early 20th Century. Niles, Ohio?: G.C. Allison, 2001.
  • Allison, Grace C. and Niles Historical Society. Heaton's Town : Niles, Trumbull County, Ohio. 2nd ed. Niles, Ohio: Niles Historical Society ;, 2009.
  • Baldwin, Harry R. Portage, Mahoning, Trumbull and Columbiana Counties : Ohio Revolutionary War Soldiers and Their Wives or Widows. 1 vols. S.l.: s.n., 1910.
  • Buell, James K. and Richard Hanson. History of Johnston Township, Trumbull County, Ohio, 1802-1922. Ohio: Richard Hanson, 2006.
  • Butler, Joseph G. History of Youngstown and the Mahoning Valley, Ohio. microformMicrofiche. Chicago: American Historical Society, 1921.
  • Case, Leonard and Western Reserve Historical Society. Early Settlement of Warren, Trumbull Co., Ohio Pamphlets. Cleveland: Fairbanks Benedict, 1876.
  • Case, Mary. Cortland - Bazetta Remembered : Personal Reflections of Yesterday. Cortland, Ohio: Howland Printing, 1995.
  • Clark, Hazel V. Mesopotamia : Between Two Rivers. Warren, Ohio: Trumbull County Historical Society, 1957.
  • Daughters of the American Revolution. Mary Chesney Chapter (Warren Ohio). Index to a Twentieth Century History of Trumbull County, Ohio : Volumes 1 and 2. Warren, Ohio: Mary Chesney Chapter National Society Daughters of the American Revolution, 1963.
  • Dilley, Gerald Elton, Ruth Hanson Dilley and Janet Dilley Phalen. I Come from a Long Line of Dilleys : The History and Genealogy of the Branch of the Dilley Family Who Migrated from New Jersey to Trumbull County, Ohio with Later Generations in Northeastern Illinois and Wisconsin : Including the Families of Known Brothers and Sisters in Each Generation. Clintonville, Wis. (N10674 Lakeshore Rd., Clintonville, Wis. 54929): Gerald and Ruth Dilley, 2001.
  • Elteto, Louis J. "German Settlements in Trumbull, Columbiana, Stark and Mahoning Counties, Ohio, 1800-1880." M.a., Kent State University, 1964.
  • Federal Writers' Project of Ohio. Warren and Trumbull County. Western Reserve Historical Celebration Committee, 1938
  • H.Z. Williams & Bro. History of Trumbull and Mahoning Counties with Illustrations and Biographical Sketches. Volume I. Cleveland,: H.Z. Williams & Bro., 1882.
  • H.Z. Williams & Bro. History of Trumbull and Mahoning Counties with Illustrations and Biographical Sketches. Volume II. Cleveland,: H.Z. Williams & Bro., 1882.
  • H.Z. Williams & Bro. Index of Names : History of Trumbull and Mahoning Counties with Illustrations and Biographical Sketches. Cleveland: H.Z. Williams & Bro., 1882.
  • Historical Records Survey (Ohio) and United States. Works Progress Administration. Division of Women's and Professional Projects. Inventory of the County Archives of Ohio. No. 78. Trumbull County (Warren). Columbus: Historical Records Survey, 1937.
  • Hoskins, Mary Case. The Greene Story, 1817-1976. Rev. ed. Warren, Ohio: The Trumbull County Historical Society, 1976.
  • Howe, Henry. History of Trumbull County Ohio : 1800-1889. Signal Mountain, TN: Mountain Press.
  • Kachur, Thomas J. Mecca. Cortland, Ohio,: Thomas Kachur, 1973.
  • Kachur, Thomas J. Historical Collections of Bristol Township, Bristolville, Ohio. Ohio?: Closson Press, 1989.
  • Kinsman Historical Society. Kinsman Images of America. Charleston, S.C.: Arcadia Publishing, 2010.
  • L.H. Everts & Co. Combination Atlas Map of Trumbull County, Ohio, Compiled, Drawn and Published from Personal Examinations and Surveys. Chicago,: L.H. Everts, 1874.
  • Lane, Sally. Cortland and Bazetta Township Images of America. Charleston, S.C.: Arcadia Pub., 2012.
  • Lewis Publishing Company. Biographical History of Northeastern Ohio : Embracing the Counties of Ashtabula, Trumbull and Mahoning : Containing Portraits of All the Presidents of the United States, with a Biography of Each, Together with Portraits and Biographies of Joshua R. Giddings, Benjamin F. Wade, and a Large Number of the Early Settlers and Representative Families of to-Day. Chicago: Lewis Pub. Co., 1893.
  • Mahoning Valley Collecting Institutions Roundtable. and Mahoning Valley Historical Society. Local History Sourcebook : A Guide to Archives and Collections in Mahoning, Trumbull, and Columbiana Counties. Youngstown, Ohio: Mahoning Valley Collecting Institutions Roundtable & Mahoning Valley Historical Society, 2012.
  • Mahoning Valley Historical Society. Historical Collections of the Mahoning Valley : Containing an Account of the Two Pioneer Reunions, Together with a Selection of Interesting Facts, Traditions, Biographical Sketches, Anecdotes, Etc., Relating to the Sale and Settlement of the Lands Belonging to the Connecticut Land Company, and History and Reminiscences, Both General and Local. Volume 1. Bowie, Md.: Heritage Books, 1997.
  • Marshall, Agnes. History of Southington Township, 1776-1976 : Bicentennial Issue. Ohio: Southington Bicentennial Committee, 1976.
  • Marshall, Agnes and Lillian Kimmel. Southington, Trumbull County, Ohio. Postscripts. N.p.,, 1976.
  • Mathews, Elsie Hinman and Daughters of the American Revolution. Mary Chesney Chapter (Warren Ohio). Justices of the Peace, Trumbull County, Ohio, 1800-1865 Early Vital Records of Ohio / Daughters of the American Revolution. Warren, Ohio: Mary Chesney Chapter Daughters of the American Revolution, 1976.
  • Ohio Genealogical Society. Trumbull County Chapter. New Index to the 1876 Historical Collections of the Mahoning Valley : Trumbull & Mahoning Counties. Knightstown, Ind.: Bookmark, 1979.
  • Plunkett, Robert and Nellie Mathews. Mathews Genealogy of William S. Mathews (Deacon) and His Descendants. Warren, Ohio: s.n., 1981.
  • Porter, James F., Wendell F. Lauth and Friends of the Newton Falls Public Library. Fragments of History of Newton Falls and Newton Township, Ohio : "A Collection of Nineteenth Century Historical Writings by Dr. James F. Porter". Newton Falls, Ohio: Friends of the Newton Falls Public Library, 2003.
  • Pringle, William R., Arthur O. Hill and Freemasons. Grand Lodge of the State of Ohio. A History of Jerusalem Lodge No. 19, F. & A.M. S.l.: s.n., 1962.
  • Reformed Church in the United States. West Pennsylvania Classis. Verhandlungen Einer Classical-Versammlung Gehalten in Canfield, Trumbull County, Ohio, Vom 18ten Bis Zum 20sten May, 1829. Canton, Ohio: Sala und Lehmus, 1829.
  • Rupe, Doris Crouch and Mary Hoskins. The Greene Pages, 1817-2000 : Updating & Expanding Mary Case Hoskins' "the Greene Story". 5 vols. Ohio: s.n., 2000.
  • Schwendeman, Carol and Andrew J. White. The Descendants of James & Fannie (Pittinger) White of Trumbull County, Ohio. Burton, Ohio?: C. Schwendeman?, 1997.
  • Sells, Grace R. The History of Braceville Township, Trumbull County, Ohio. S.l.: s.n., 1976.
  • Trumbull County (Ohio). Recorder's Office. Western Reserve Land Draft, 1795-1809 Including 1807 Volume West of Cuyahoga River. microform. Columbus, Ohio: Ohio Historical Society, 1980.
  • Trumbull County Historical Society. "Trump of Fame." v. Warren, O.,: Trumbull County Historical Society.
  • Tuttle, Harley A. Historical Sketch Of ... Lordstown, Trumbull County, Ohio ... Adapted Fr. Hist. Of Trumbull and Mahoning Counties. S.l.: Henry Tuttle, 1930.
  • Ulam, Norman and Mary Lou Ulam. Naturalizations in Trumbull County, Ohio 1800-1870, 1983.
  • Upton, Harriet Taylor. A Twentieth Century History of Trumbull County, Ohio;a Narrative Account of Its Historical Progress, Its People, and Its Principal Interests. Volume II. Chicago,: Lewis Pub. Co., 1909.
  • Upton, Harriet Taylor, Thedis Sparks and Georgia Kightlinger. Index to a Twentieth Century History of Trumbull County, Ohio, by Harriet Taylor Upton. Evansville, Ind.: Whipporwill Publications, 1983.
  • Varner, Emily L. Trumbull County, Ohio : Spanning the Generations, 1795-2002. Cortland, Ohio: Howland Printing, 2003.
  • Wadsworth, Frederick and Elisha Whittlesey. "History of Canfield, Ohio." 1860.
  • Warren-Trumbull County Bicentennial Commission. Bicentennial History Book : The History of Ohio, Trumbull County and Its Cities, Villages, and Townships. Warren, Ohio , 1976.


Referenced Items
(content on HistoryKat that references this area)

Trumbull County Proclamation, 1800

Beginning at the completion of the 41st degree of north latitude, one hundred and twenty miles west of the western boundary of Pennsylvania, and running from thence by a line to be drawn north parallel to and one hundred and twenty miles west of the said west line of Pennsylvania, and to continue north until it comes to 42 degrees 2 minutes north latitude ;thence with a line to be drawn east, until it intersects the said western boundary of Pennsylvania: tbence with the said western boundary of Pennsylvania south, to the completion of the 41st degree of north latitude, and from thence west, to the place of beginning.


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