diff --git a/about/index.html b/about/index.html
index 18eaed8..d4a5261 100644
--- a/about/index.html
+++ b/about/index.html
@@ -36,6 +36,10 @@
 
         <h2 id="past">Past</h2>
 
+        <p><a href="https://www.historylink.org/File/2346" target="_blank">
+          Read about the Beall Greenhouses on HistoryLink.org
+        </a>.</p>
+
         <h2 id="present">Present</h2>
 
         <h2 id="future">Future</h2>