diff --git a/Lib/cdata.i b/Lib/cdata.i
index ac30352db..a9e74ed8a 100644
--- a/Lib/cdata.i
+++ b/Lib/cdata.i
@@ -7,14 +7,6 @@
  * SWIG library file containing macros for manipulating raw C data as strings.
  * ----------------------------------------------------------------------------- */
 
-/* -----------------------------------------------------------------------------
- *
- * Author(s):  David Beazley (beazley@cs.uchicago.edu)
- *
- *
- * $Header$
- * ----------------------------------------------------------------------------- */
-
 %{
 typedef struct SWIGCDATA {
     char *data;
diff --git a/Lib/math.i b/Lib/math.i
index 3776efdb0..be931d71b 100644
--- a/Lib/math.i
+++ b/Lib/math.i
@@ -7,15 +7,6 @@
  * SWIG library file for floating point operations.
  * ----------------------------------------------------------------------------- */
 
-/*
- * $Header$
- *
- * math.i
- * Dave Beazley
- * March 24, 1996
- *
- */
-
 %module math
 %{
 #include <math.h>
diff --git a/Lib/ruby/typemaps.i b/Lib/ruby/typemaps.i
index 521b7e564..c80f9492c 100644
--- a/Lib/ruby/typemaps.i
+++ b/Lib/ruby/typemaps.i
@@ -1,16 +1,19 @@
+/* -----------------------------------------------------------------------------
+ * See the LICENSE file for information on copyright, usage and redistribution
+ * of SWIG, and the README file for authors - http://www.swig.org/release.html.
+ *
+ * typemaps.i
+ *
+ * Pointer handling
+ *
+ * These mappings provide support for input/output arguments and
+ * common uses for C/C++ pointers.  INOUT mappings allow for C/C++
+ * pointer variables in addition to input/output arguments.
+ * ----------------------------------------------------------------------------- */
+
 #if !defined(SWIG_USE_OLD_TYPEMAPS)
 %include <typemaps/typemaps.swg>
 #else
-//
-// typemaps for Ruby
-//
-// $Header$
-//
-// Copyright (C) 2000  Network Applied Communication Laboratory, Inc.
-// Copyright (C) 2000  Information-technology Promotion Agency, Japan
-//
-// Masaki Fukushima
-//
 
 /*
 The SWIG typemap library provides a language independent mechanism for