diff --git a/GeoModelVisualization/GXTrackDisplaySystems/src/GXTrackDisplaySystem.cxx b/GeoModelVisualization/GXTrackDisplaySystems/src/GXTrackDisplaySystem.cxx
index d4ef29606623437086ddcf4ea7c56ec9e8be6eb3..ac8eba305f19e25b4f6c7c55fb727588c2349439 100644
--- a/GeoModelVisualization/GXTrackDisplaySystems/src/GXTrackDisplaySystem.cxx
+++ b/GeoModelVisualization/GXTrackDisplaySystems/src/GXTrackDisplaySystem.cxx
@@ -1,5 +1,5 @@
 /*
-  Copyright (C) 2002-2012 CERN for the benefit of the ATLAS collaboration
+  Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
 */
 
 
diff --git a/GeoModelVisualization/GXTrackDisplaySystems/src/TrackDisplaySysController.cxx b/GeoModelVisualization/GXTrackDisplaySystems/src/TrackDisplaySysController.cxx
index 9418c8bf7d00d75d3d89b73ce215a7e448804f5b..8639d17be92e51d441f47fdc098836e6e7ed9f2b 100644
--- a/GeoModelVisualization/GXTrackDisplaySystems/src/TrackDisplaySysController.cxx
+++ b/GeoModelVisualization/GXTrackDisplaySystems/src/TrackDisplaySysController.cxx
@@ -1,14 +1,13 @@
 /*
-  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
+  Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
 */
 
 
 ////////////////////////////////////////////////////////////////
 //                                                            //
-//  Implementation of class HitDisplaySysController           //
+//  Implementation of class TrackDisplaySysController         //
 //                                                            //
-//  Author:  Joseph F. Boudreau (boudreau@pitt.edu)           //
-//  Initial version: March 2020                               //
+//  Based on implementation of class HitDisplaySysController  //
 //                                                            //
 ////////////////////////////////////////////////////////////////