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Do you know of Grey Rock ???

This page is an orphan - a placeholder until we can discover more about Grey Rock. When we encounter a name that is new to us, we add it to our Gazetteer with the hope that we'll discover more information in the future. Such is the case with Grey Rock.<1>

We found mention of Grey Rock as a post office (see Mentions and References below), but can't determine its location - other than being located somewhere in Harford County, Maryland.

It's common that the post office is named the same as the community in which it's located (although that's not always case). In this case, we can't match this post office to any of the existing communities in our gazetteer.<2>

From the Blevins / Hellbock List: The post office opened  in 1839 and closed  in 1860.

Communities Also Named Grey Rock ...

We found three communities that share the name Grey Rock.

There is one other community in Maryland which is also named Grey Rock.

Beyond Maryland, we know of another two communities that are located throughout in the United States and Canada. Of these two communities, .

  • Communities Located In Maryland ...
    • Baltimore County
      • Please visit our profile page for the Maryland community of Grey Rock [Baltimore County].
  • Communities Elsewhere In North America ...
    • Quebec
      • Please visit our profile page for the Quebec community of Grey Rock.
    • South Carolina
      • York County
      • Please visit our profile page for the South Carolina community of Grey Rock [York County].

Miscellaneous References and Mentions for Grey Rock ...

We've created the following list to keep track of the sources that proved useful in adding to our knowledge about Grey Rock:

Found in a comprehensive list of Post Offices that was created by Cameron Blevins and Richard Helbock.<3>

Table of U.S. Post Offices in the United States (Jan. 1851)
Published by W. & J.C. Greer, Printers

U.S. Post Offices (Oct. 1846)
Published by John T. Towers

More Orphans in  Harford County ...

Can you help?

As we explained above, when we encounter a name that might be a community or a post office we add it to our Gazetteer. If we have little information to go with the name, we call them Orphans. Below are Orphans that we believe to be located in Harford County.

AbingtonLine Bridge
 Ludwig
Bel Air North 
Bel Air SouthMarshall
Boothby HillMcIntyre
Broad Creek 
Bynum RidgeOtter Point
  
Clermont MillsPerrymansville
 Pylesville Station
Deer Creek 
 Rich Neck
FulfordRobinson's Siding
 Rocks
Green Spring HillsThe Rocks
Greenridge 
GreenstoneSandy Hook
GunpowderSewell
 Shure's Landing
HarfordSouth Delta
Hickory TavernStepney
Highland GroveSusquehanna Hills
  
Lakeside VistaWheel
Lees WoodsWilloughby Beach

Footnotes ...

<1>This entry could have originated in error. It might be that a source had a misprint, was simply wrong or we made a transcription error while referencing it. Many of the documents we reference are from the 1800s and the early 1900s, with some easier to read than others.
<2>Part of the difficulty in identifying whether a name is a post office or a community lies with how Post Offices were named. We've prepared an article with our understanding of how post offices were named: Naming of Post Offices.
<3>A copy of their list with background information can be found at:

      https://cblevins.github.io/us-post-offices/data-biography/









 

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This page was last modified/updated: 21 Apr 2025