Finally, a club I want to join.

With little more than mortar and their ever-present red shirts, the Clampers, as the organization’s members are known, have placed more than 1,000 bronze, wood and granite plaques throughout California, from the remote stretches of coast to mining towns like this one, in the foothills of the Sierra Nevada.

The group’s handiwork appears on roadsides, lakesides and at the sites of former brothels, breweries and ballrooms. Jails and forts have been plaqued, and so have whaling stations. Historical drinks have been commemorated — and, no doubt, imbibed — along with ghost stories, stories of heroism and plenty of tall tales in between.

“It’s a common saying that no one has been able to tell if they are historians that like to drink or drinkers who like history,” said Dr. Robert J. Chandler, a senior historian at Wells Fargo Bank and a proud member of the group’s San Francisco chapter. “And no one knows because no one has been in any condition to record the minutes.”