Marion County MOGenWeb is dedicated to providing free information for family historians searching for their roots in Marion County, Missouri. Page updates are complete as of Jan 23, 2024 @ 2:03 pm. Do you have content to share? Do you have questions, comments, or to report a broken link or other issue, contact Dennis Partridge.

Marion County Missouri Formation Timeline

The following dates are important in early Marion County genealogy research as where your ancestor lives before and after these dates may determine which county you should be looking at.

14 Dec 1822 MARION created from RALLS; MARION not fully organized, attached to RALLS “for all military, civil, and judicial purposes.”
23 Dec 1826 MARION lost to RALLS; MARION fully organized, detached from RALLS; Non-County Area 10 detached from RALLS, attached to MARION “for all military, civil, and judicial purposes.”
06 Jan 1831 MARION lost part of attached Non-County Area 10 to creation of MONROE.
02 Jan 1833 MARION lost part of attached Non-County Area 10 to creation of LEWIS and Non-County Area 19.
02 Jan 1835 MARION lost part of attached Non-County Area 10 to creation of SHELBY.
06 Jan 1837 MARION lost attached Non-County Area 10 to creation of MACON; Non-County Area 10 eliminated.
24 Feb 1843 MARION gained from MONROE.

Share your Marion County discoveries

Drop me a note if you can share things like:

  • local family histories, memoirs, diaries, family trees
  • cemetery, census, court, vital records, etc.
  • old phone or business directories
  • links to relevant websites
  • success stories–what resources or research techniques have worked for you
  • to report an error or broken links

We may be able to scan and digitize books that are no longer under copyright restrictions. Let us know who you are researching so we can grow our Surnames page.

Hit a brick wall in searching for your kin? Have you tried:

  1. Searching in neighboring counties and states – see below
  2. Find a Facebook group – search by surname or by location
This information may be used by individuals for their own personal use, libraries, and genealogical societies, however, commercial use of this information is strictly prohibited without prior written permission. If copied, this copyright notice must appear with the information.

Dennis Partridge

Dennis Partridge

Marion county coordinator for MOGenWeb. Do you have content to share? Do you have comments, or to report a broken link or other issue, contact Dennis Partridge. If you have a Marion County Missouri genealogy related question please post it on our query page. Thanks for understanding!

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MOGenWeb isn’t an ordinary genealogy website. Ordinary websites are those where text and sometimes pretty pictures are present but trying to get in touch with a real person to help you with your research… impossible. The strength of MOGenWeb is its many volunteers, some of whom have spent over a decade assisting others with their Missouri research.

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USGenWeb Project

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Marion County Projects

What’s New?

Gold Rush Letters – September 15, 1850

September 15, 1850 From letter published in the Missouri Whig, Palmyra, ca late, 1850 CALIFORNIA LETTER We make a few extracts from a letter from Elisha C. Winchell, Exq., formerly of this place. It is dated Sacramento City, September 15th, 1850: * * * * Mining, I am...

Gold Rush Letters – June 24, 1850

June 24, 1850 From letter published in the Missouri Whig, Palmyra, ca September, 1850 COLOMA, June 24th, 1850 J. Sosey, Esq -- Sir: Being rather an invalid at present, I avail myself of the temporary leisure thus afforded, to drop you a line for the gratification of...

Gold Rush Letters – May 25, 1850

May 25, 1850 From letter published in the Missouri Whig, Palmyra, ca September, 1850 CALIFORNIA LETTER We give below some extracts from a letter from Mr. William Hecton, to Mr. Jas. D. Overton, dated Stockton, Cal., May 25, 1850: * * * I have nothing of importance to...

Gold Rush Letters – March 17, 1850

March 17, 1850 From letter published in the Missouri Whig, Palmyra, ca ?, 1850 CALIFORNIA LETTER The following is an abstract of a letter received by Thos. E. Hatcher, Esq., from Gen. David Willock, dated the 17th day of March, 1850, and written from Culloma: I came...

Gold Rush Letters – March 10, 1850

March 10, 1850 From letter published in the Missouri Whig, Palmyra ca ?, 1850 CALIFORNIA LETTER We make a few extracts from a letter from Gen. D. b, to his wife, which has been kindly furnished us. The letter is dated Cullomo, March 10; * * * The horrors of war and...

Gold Rush Letters – February 20, 1850

February 20, 1850 From letter published in the Missouri Whig, Palmyra, ca ?, 1850 CALIFORNIA LETTER Extracts from letters from Mr. Thos. Hart to Thomas E. Hatcher, Esq., dated Feb 27th, and to Mr. William L. Hatcher, dated Feb. 20th: * * * They have been gardening...