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OH-ADAMS

Group to discuss, share or ask questions of a genealogical nature for persons who may have had a life event in Adams County, Ohio. This group replaces the Rootsweb mailing list OHADAMS.
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40 Members, 1 Topic, Public Archive, Last Post:

OH-EMCOMM / OH-EMCOMM

Finnish EMCOMM Group
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35 Members, 79 Topics, Private Archive, Restricted, Last Post:

OH-EMCOMM-SYSOPS / OH-EMCOMM-SYSOPS

Group for OH-EMCOMM sysops. Meant for all sysops of the finnish WinLink GateWays. Also to receive posts from outside of group.
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10 Members, 42 Topics, Private Archive, Restricted, Last Post:

The purpose of this email group is for sharing of information, asking questions and having discussions regarding message traffic handling and net operation as it pertains to the National Traffic System, particularly within Ohio. Anyone interested in learning more about this is welcome to join in.
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1 Member, 0 Topics, Public Archive, Restricted, Last Post:

OH2K / Kauniaisten Radiokerho OH2K / OH2NRG

Generic discussion group related to OH2K / OH2NRG Radio Club of Kauniainen, Finland Postituslista Kauniaisten Radiokerhon OH2K / OH2NRG yleisistä asioista keskusteluun Postituslista on integroitu kerhon Trello-työlistaan osoitteessa https://trello.com/b/vnrMdaBT/oh2k
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61 Members, 155 Topics, Private Archive, Restricted, Last Post:

oh3gdo

Radioamateur 59 years
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1 Member, 1 Topic, Public Archive, Restricted, Last Post:

OH5AB

Radioamatöörikerho Saimaan viitoset ry OH5AB, Lappeenranta
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21 Members, 17 Topics, Public Archive, Last Post:

oh6aad

Viitasaaren Radiokerho ry:n (OH6AAD) postituslista
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16 Members, 213 Topics, Private Archive, Last Post:

oh6ac / OH6AC Lapuan Radiokerho

Lapuan radiokerhon keskustelu palsta. Kaikenlaista tekniikka ja muuta vastaavaa Keskustelua.
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8 Members, 917 Topics, Public Archive, Restricted, Last Post:

oh7ab

Pohjois-Karjalan Radiokerho ry OH7AB
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1 Member, 0 Topics, Public Archive, Last Post:

OHALLEN / Allen County, Ohio Genealogy Group

Welcome! This is the former Rootsweb list, OHALLEN. We'll be discussing the history and genealogy of Allen County, Ohio including the surrounding region of northwestern Ohio.
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42 Members, 6 Topics, Public Archive, Last Post:

OHalloran

Formerly Rootsweb. For the purpose of genealogy discussions pertaining to the O'Halloran surname.
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4 Members, 4 Topics, Public Archive, Last Post:

OhanaWaldorf

A group of Waldorf School at Garden City, NY alumni from the class of 1970. Includes others who attended the School but did not stay on through high school. About thirty or more classmates in all, some of us who attended all fourteen years, as well as some spouses/partners.
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26 Members, 808 Topics, Private Archive, Last Post:

oharas / O'Hara's writer's group

An informal prose writing group who meet at O'Hara's Food & Spirits in Newton Highlands.
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14 Members, 298 Topics, Public Archive, Restricted, Last Post:

OHASHLAND

A genealogical mailing list for Ashland County, Ohio. This list replaces the one at RootsWeb, which will be shut down in March of 2020. https://lists.rootsweb.com/hyperkitty/list/ohashlan.rootsweb.com/2020/1/
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13 Members, 0 Topics, Public Archive, Last Post:

OHaver

Formerly Rootsweb. For the purpose of genealogy discussions pertaining to the surname – OHaver
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3 Members, 3 Topics, Public Archive, Last Post:

ohb

OHB (Open Hamclock Backend) is a collaborative group of radio amateurs that got together to re-create the backend server that feeds all the Hamclock clients out in the wild after the sad news that Elwood Downey, WB0OEW became SK in January of 2026. Elwood ran and maintained his own server that fed all the 10k+ Hamclocks.
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4 Members, 0 Topics, Public Archive, Last Post:

ohbike / Oxon Hill Bicycle and Trail Club

The Oxon Hill Bicycle and Trail Club is a recreational cycling club with rides in Southern Maryland, Northern Virginia and the District of Columbia. This group is for members to exchange cycling-related information of interest to club members. It replaces the OHBIKE Yahoo group.
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265 Members, 2,244 Topics, Public Archive, Restricted, Last Post:

OHCA / Otterhound Club of America, Inc.

This Group is set up for the purpose of conducting business of the Otterhound Club of America, Inc. (OHCA), official communications of the OHCA, members discussing issues and concerns. OHCA GROUP GUIDELINES: All members are expected to show respect for the opinions of others. Inappropriate or rude posts or attacks on others are not acceptable. Repeated or extreme offenses could result in the in...
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153 Members, 3,338 Topics, Private Archive, Restricted, Last Post:

OHCAGG / Computer Assisted Genealogy Group (CAGG)

Computer Assisted Genealogy Group - Cleveland Area (OHCAGG) mailing list and user group. This list is for announcements, questions, and conversation about CAGG programs and activities and for its members and other interested genealogists to share with one another about CAGG and genealogy-related interests. See the Wiki (on the left) for more details and links. Membership Form is under Files. Dates...
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66 Members, 487 Topics, Public Archive, Last Post:

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