diff --git a/CREDITS.txt b/CREDITS.txt
index fd76180b4..1fa8b356a 100644
--- a/CREDITS.txt
+++ b/CREDITS.txt
@@ -2162,3 +2162,7 @@ David Garcia-Mendia
 Mark Jones
 John Zseleczky
 Xiao Sun
+Glenn Harvey
+Albrecht Friebel
+Gunter Klemke
+Travis McCarthy