Decatur Co. Genealogy Forum read and post messages about your ancestors for this county
Decatur County, IA Genweb Project a collection of online resources for genealogy researchers
Decatur County Message Board read and post messages with other genealogy researchers of this county
IAGenWeb State Census Project - Decatur County the goal of this project is to IAGenWeb and publish online, all State of Iowa (Non-Federal) censuses for free public genealogical research
Iowa Graves Survey - Decatur County 1930s graves registration survey
Iowa Gravestone Photo Project - Decatur County search gravestone photos indexed by county submitted by volunteers
The Tombstone Transcription Project - cemeteries for Decatur Co. IA
US GenWeb Archives for Decatur County cemeteries, newspapers, wills, military rosters etc recorded online
Civil War Roster of Decatur County

Additional Resources

Iowa Public Records Search find living & deceased family members/relatives including address, phone number, age..
Iowa Birth Records
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Iowa Death Records