I don’t remember when I first came across this website, https://www.hmdb.org/, but it has been a blessing. From their About Us page: https://www.hmdb.org/about.asp:
This website is an illustrated searchable online catalog of historical information viewed through the filter of roadside and other permanent outdoor markers, monuments, and plaques. It contains photographs, inscription transcriptions, marker locations, maps, additional information and commentary, and links to more information. Anyone can add new markers to the database and update existing marker pages with new photographs, links, information and commentary.
Inscription
Photos of the marker and nearby items
If the marker is part of a series
Location
Other nearby markers
More about this marker
Also see (other websites related to the marker)
Additional comments
Credits
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