diff --git a/contributors.xml b/contributors.xml
index f3de25b4f6..c6393e5b03 100644
--- a/contributors.xml
+++ b/contributors.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.14 $ -->
+<!-- $Revision: 1.15 $ -->
 
  <!--
    This file should only be present in the English doc tree. If you
@@ -16,6 +16,7 @@
   
   <para>
    &Credit.Past.Authors.Text;
+   Bill Abt,                <!-- pdo howto via ibm -->
    Jouni Ahto,              <!-- jah -->
    Alexander Aulbach,       <!-- ssilk [at] ssilk.de  [no cvs user] -->
    Daniel Beckham,          <!-- danbeck -->
@@ -38,6 +39,7 @@
    Hannes Magnusson,        <!-- bjori -->
    Stanislav Malyshev,      <!-- stas -->
    Rafael Martinez,         <!-- rafael -->
+   Rick McGuire,            <!-- pdo howto via ibm -->
    Yasuo Ohgaki,            <!-- yohgaki -->
    Derick Rethans,          <!-- derick -->
    Rob Richards,            <!-- rrichards -->