Adams Allen Ashland Ashtabula Athens Auglaize Belmont Brown Butler Carroll Champaign Clark Clermont Clinton Columbiana Coshocton Crawford Cuyahoga Darke Defiance Delaware Erie Fairfield Fayette Franklin Fulton Gallia Geauga Greene Guernsey Hamilton Hancock Hardin Harrison Henry Highland Hocking Holmes Huron Jackson Jefferson Knox Lake Lawrence Licking Logan Lorain Lucas Madison Mahoning Marion Medina Meigs Mercer Miami Monroe Montgomery Morgan Morrow Muskingum Noble Ottawa Paulding Perry Pickaway Pike Portage Preble Putnam Richland Ross Sandusky Scioto Seneca Shelby Stark Summit Trumbull Tuscarawas Union Van Wert Vinton Warren Washington Wayne Williams Wood Wyandot

Adams County – No Chapter


Allen County Chapter, OGS
Website: in process
Email: [email protected]


The Alliance Genealogical Society – No Chapter


Ashland County Chapter, OGS
Website: https://www.ashlandccogs.org
Email: [email protected]


Ashtabula County Chapter, OGS
Website: http://www.ashtabulagen.org/
Email: [email protected]


Athens County Chapter, OGS
Website: http://www.athenshistory.org/
Email: [email protected]


Auglaize County Chapter, OGS
Website: http://www.rootsweb.com/~ohaugogs/index.html
Email: none


Belmont County Chapter, OGS
Website: http://www.belmontccogs.org/
Email: [email protected]


Brown County Chapter, OGS
PO Box 83, Georgetown, OH 45121-0083
Website: http://homepages.rootsweb.com/~teri/OH/brown-co.htm
Email: [email protected]


Butler County Chapter, OGS
Website: http://www.butlercountyogs.org/
Email: [email protected]


Carroll County Chapter, OGS
Website: http://www.rootsweb.com/~ohcarcgs/
Email: [email protected]


Champaign County Chapter, OGS – No Chapter


Clark County Chapter, OGS
Website: http://www.rootsweb.com/~ohcccogs/
Email: [email protected]


Clermont County Chapter, OGS
Website: http://ccgsoh.org
Email: [email protected]


Clinton County Chapter, OGS
Website: http://www.clintoncountyhistory.org
Email: [email protected]


Columbiana County Chapter, OGS
Website: http://www.rootsweb.ancestry.com/~ohcolumb/
Email: [email protected] 


Coshocton County Chapter, OGS
Website: https://coshoctongenealogy.wordpress.com/
Email: [email protected]


Crawford County Chapter, OGS
Website: https://crawfordcountyohiogenealogy.org/
Email: [email protected]


Cuyahoga Valley Chapter, OGS
Website: http://www.cuyahogagenealogy.org/
Email: [email protected]


Cuyahoga West Chapter, OGS
Website: http://www.rootsweb.com/~ohcwogs
Email: [email protected]


Darke County Chapter, OGS
P.O. Box 908 Greenville, Ohio 45331-0908
Website: http://dcgs.dcoweb.org
Email: none


Defiance County Chapter, OGS
Website: http://www.defiancecountygenealogy.org/
Email: [email protected]


Delaware County Chapter, OGS
Website: http//www.delawareohiogenealogy.org
Email: [email protected]


East Cuyahoga Chapter, OGS
Website: http://www.rootsweb.ancestry.com/~oheccgs/
Email: [email protected]


Erie County Chapter, OGS – No Chapter


Fairfield County Chapter, OGS
Website: http://www.fairfieldgenealogy.org/
Email: [email protected]


Fayette County Chapter, OGS
Website: https://sites.google.com/site/fayettecoohgensociety/
Email: [email protected]


Florida Chapter, OGS
Public Facebook Group: https://www.facebook.com/groups/474718687208607
Private Facebook Group: https://www.facebook.com/groups/FLOGS
Email: [email protected]


Franklin County Chapter, OGS
Website: http://www.fcghs-oh.org/
Email: [email protected]


Fulton County Chapter, OGS
Website: http://www.fultoncoogs.org/
Email: [email protected]


Gallia County Chapter, OGS
Website: http://galliagenealogy.org/
Email: [email protected]


Geauga County Chapter, OGS
Website: http://www.gcgsoh.org/
Email: [email protected]


Greater Cleveland Chapter, OGS
Website: https://gcgs.yolasite.com/
Email: [email protected]


Greene County Chapter, OGS
Website: https://www.greenecountyogs.com/
Email: [email protected]


Guernsey County Chapter, OGS
Website: www.guernseycountyohiogenealogy.com/
Email: [email protected]


Hamilton County Chapter, OGS
Website: http://www.hcgsohio.org/
Email: [email protected]


Hancock County Chapter, OGS
Website: https://www.facebook.com/hccogs
Email: [email protected]


Hardin County Chapter, OGS
Website: http://www.hardincountyconnections.com
Email: [email protected]


Harrison County Chapter, OGS
Website: https://sites.rootsweb.com/~ohharris/hcgs.htm
Email: [email protected]


Henry County Chapter, OGS
Website: http://www.henrycountyohiogenealogy.org/index.html
Email: none – Contact form on website


Highland County
See Southern Ohio Chapter, OGS


Hocking County Chapter, OGS
64 N Culver St Logan OH 43138-1433
Email: none


Holmes County Chapter, OGS
Website: http://www.rootsweb.ancestry.com/~ohholmes/hcgs_index.html
Email: [email protected]


Hudson Genealogical Study Group
Website: https://www.hudsongsg.org/
Email: [email protected]


Huron County Chapter OGS (DBA) Firelands Genealogical Society
Website: http://www.hcc-ogs.org
Email: [email protected]


Jackson County Chapter, OGS
Website: http://www.jacksoncountyohiogen.com/
Email: [email protected]


Jefferson County Chapter, OGS
Website: http://www.jeffcochapter.com/
Email: [email protected]


Knox County Chapter, OGS
Website: http://www.rootsweb.com/~ohkcgs
Email: [email protected]


Lake County Chapter, OGS
Website: https://www.lcgsohio.org/
Email: [email protected]


Lawrence County Chapter, OGS
Website: http://www.lawrencegenealogy.org
Email: [email protected] or [email protected]


Licking County Chapter, OGS
Website: https://lickingcountyohiogenealogysociety.org/
Email: [email protected]


Logan County Chapter, OGS
Website: https://www.loganhistory.org/genealogical-society
Email: [email protected]


Lorain County Chapter, OGS
Website: http://loraincoogs.org/
Email: [email protected]


Lucas County Chapter, OGS
Website: http://www.lucasogs.org
Email: [email protected]


Madison County Chapter, OGS
Website: http://sites.rootsweb.com/~ohmadiso/index.html
Email: [email protected]


Mahoning County Chapter, OGS
Website: https://www.facebook.com/MahoningCountyGenealogy/
Email: [email protected]


Marion Area Chapter, OGS
Website: http://www.marionohmags.weebly.com
Email: [email protected]


Medina County Chapter, OGS
Website: http://medinacoogs.org/
Email: [email protected]


Meigs County Chapter, OGS
34465 Crew Road, Pomeroy, OH 45769
Email: none


Mercer County Chapter, OGS
Website: http://www.mercerogs.net
Email: [email protected]


Miami County Historical and Genealogical Society
Website: http://www.rootsweb.com/~ohmchgs/
Email: [email protected]


Monroe County Chapter, OGS
Website: http://www.rootsweb.com/~ohmccogs/
Email: [email protected]


Montgomery County Chapter, OGS
Website: https://mcc-ogs.org
Email: [email protected]


Morgan County Chapter, OGS
Website: http://www.morgancountyogs.org/
Email: [email protected]


Morrow County Chapter, OGS
Website: https://morrowcountygenealogy.org/
Email: [email protected]


Muskingum County Chapter, OGS
Website: http://www.mccogs.org
Email: [email protected]


Noble County Chapter, OGS
Website: www.noblecountyogs.org
Email: [email protected]


Ottawa County Chapter, OGS
Website: www.ocogs.org
Email: [email protected]


Paulding County Chapter, OGS
Website: http://www.pauldingcountyogs.org
Email: [email protected]


Perry County Chapter, OGS
Website: http://perrycochapterogs.org/
Email: [email protected]


Pickaway County Chapter, OGS
Website: http://www.pickawaygenealogy.org
Email: [email protected]


Pike County Chapter, OGS
Website: http://www.rootsweb.com/~ohpcgs/
Email: [email protected]


Portage County Chapter, OGS
Website: http://www.portagecountyhistoricalsociety.org/genealogy_society.html
Email: [email protected]


Preble County Chapter, OGS – No Chapter


Putnam County Chapter, OGS – No Chapter


Richland County Chapter, OGS
Website: http://www.rootsweb.com/~ohrichgs/
Email: [email protected]


Richland-Shelby Chapter, OGS
Website: www.shelbyohiohistory.org
Email: [email protected]


Ross County Chapter, OGS
Website: https://rcgsohio.org
Email: [email protected]


Sandusky County Chapter, OGS
Website: http://www.kinhunters.org/
Email: [email protected]


Scioto County Chapter, OGS
Website: http://www.sccogs.com
Email: [email protected]


Seneca County Chapter, OGS
Website: http://www.seneca-searchers.org/
Email: see http://www.seneca-searchers.org/contact-us.html


Shelby County Chapter, OGS
Website: http://shelbycountygenealogy.org/
Email: [email protected]


Southern Ohio Chapter of Highland County, OGS
Website: http://www.sogs.info/
Email: [email protected]


Stark County Chapter, OGS
Website: http://www.starkcountyogs.org/
Email: [email protected]


Summit County Chapter, OGS
Website: http://www.summitogs.org
Email: [email protected]


Trumbull County Chapter, OGS
Website: www.trumbullgenealogy.com & www.facebook.com/trumbullcountyohiogenealogy
Email: [email protected]


Tuscarawas County Chapter, OGS
Website: http://www.tuscogene.com/
Email: [email protected]


Union County Chapter, OGS
Website: http://www.uccogs.org
Email: [email protected]


Van Wert County Chapter, OGS – No Chapter


Vinton County Chapter, OGS
Website: None
Email: [email protected]


Warren County Chapter, OGS
Website: https://www.wcgsohio.org/


Washington County Chapter, OGS
Website: http://www.washogs.org/
Email: [email protected]


Wayne County Chapter, OGS
Website: http://www.rootsweb.ancestry.com/~ohwayne/wcgs/wcgs_index.html
Email: [email protected]


Williams County Chapter, OGS
Facebook: https://www.facebook.com/genealogyohio.wmscounty.7
Email: [email protected]


Wood County Chapter, OGS
Website: http://www.wcogs.org/
Email: [email protected]


Wyandot County Chapter, OGS
Website: http://sites.rootsweb.com/~ohwyand2/
Email: [email protected]