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After filtering for Missouri, 5 entries match your criteria.  

 
 

Historical Markers and War Memorials in Mercer County, Missouri

 
Clickable Map of Mercer County, Missouri and Immediately Adjacent Jurisdictions image/svg+xml 2019-10-06 U.S. Census Bureau, Abe.suleiman; Lokal_Profil; HMdb.org; J.J.Prats/dc:title> https://commons.wikimedia.org/wiki/File:Usa_counties_large.svg Mercer County, MO (5) Grundy County, MO (4) Harrison County, MO (6) Putnam County, MO (6) Sullivan County, MO (5) Decatur County, IA (8) Wayne County, IA (4)  MercerCounty(5) Mercer County (5)  GrundyCounty(4) Grundy County (4)  HarrisonCounty(6) Harrison County (6)  PutnamCounty(6) Putnam County (6)  SullivanCounty(5) Sullivan County (5)  DecaturCountyIowa(8) Decatur County (8)  WayneCounty(4) Wayne County (4)
Princeton is the county seat for Mercer County
Adjacent to Mercer County, Missouri
Grundy County (4)  
Harrison County (6)  
Putnam County (6)  
Sullivan County (5)  
Decatur County, Iowa (8)  
Wayne County, Iowa (4)  
 
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1 Missouri, Mercer County, Mercer — Mercer County
[side 1] Here in Missouri's north central glacial plains, Mercer County was organized, 1845. Named for Rev. War Gen. Hugh Mercer, the county is in territory ceded by Iowa, Sac, and Fox tribes in 1824. Indians hunted in the . . . Map (db m179701) HM
2 Missouri, Mercer County, Princeton — Calamity Jane — 1852-1903
Born Martha Jane Canary, on a farm east of Princeton. She became a symbol of the Wild West. Calamity Jane was buried next to Wild Bill Hickok in Deadwood, S.D.Map (db m188200) HM
3 Missouri, Mercer County, Princeton — Princeton
On April 6, 1846 The City of Princeton had its beginning when 22 Lots were sold. It was named for the battle in which General Mercer, the county's namesake, was killed. Samuel Speer owned the site and had a dwelling, a stable and a blacksmith shop. . . . Map (db m188198) HM
4 Missouri, Mercer County, Princeton, Morgan Township — In Honor of Our Boys Who Answered Their Country's Call
Revolutionary War 1775-1783 Civil War 1861-1866 Spanish American War 1898-1902 World War 1917-1919 ”They were soldiers and sailors, all brave and true, and protected our colors, the red, white, and blue.”Map (db m216897) WM
5 Missouri, Mercer County, Princeton, Ravanna Township — Birthplace of...Calamity Jane
Martha Jane Canary (1848-1903) was born in Princeton, Missouri. This hard drinking woman wore men's clothing, used her bawdy language, chewed tobacco and was handy with a gun. She traveled from Arizona through the Dakota territories during her . . . Map (db m263282) HM
 
 
 
 
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Sep. 9, 2026