New Hampshire's
historical markers are green with white text; the
state seal sits atop each one. There is generally a title line and up to 12 lines of text, each of which has no more than 45 characters. Any individual or group may propose a marker to commemorate significant New Hampshire
places,
persons, or
events. Requests must be accompanied by a petition for the marker, signed by at least 20 New Hampshire citizens. Markers generally have the same text on both sides, with some exceptions. Marker
number one in
Pittsburg only has text on one side. Marker
number 122 in
Carroll features the
Mount Washington Hotel on one side and the
Bretton Woods Monetary Conference on the other; several other markers also have different topics on each side. A few markers appear to have unique layouts: •
Number 127 in
Portsmouth provides a two-part narrative on a single subject, directing the reader to "see other side". •
Number 207 in
Madison includes an image of the
Gee Bee Model R-1 airplane built by
Granville Brothers Aircraft. •
Number 208 in
Manchester has text on one side in English, and the same information on the other side in French. •
Number 236 in
Concord discusses Civil War mustering on one side and lists specific regiments on the other. Organizers have advised, via the state's website, "As of January, 2025, the Historical Highway Marker program is currently focused on the rehabilitation and repair of existing markers and is not currently accepting new marker proposals."
Marker status The state periodically publishes a roster of markers which lists the status of each one.
Retired markers In 2023, the state published and revised criteria whereby markers may be retired: • The marker contains errors of fact • The condition of the marker is such that the cost of repair approaches the cost of a new marker • The marker requires refurbishment, but its historical or educational value is "severely limited" Since March 2022, the following markers have been listed as retired: ==List of markers==