diff --git a/books/bookvol5.pamphlet b/books/bookvol5.pamphlet
index 60d58b4..70d3b01 100644
--- a/books/bookvol5.pamphlet
+++ b/books/bookvol5.pamphlet
@@ -392,9 +392,9 @@ of effort. We would like to acknowledge and thank the following people:
 "Jinzhong Niu"
 "Michael O'Connor       Summat Oemrawsingh     Kostas Oikonomou"
 "Humberto Ortiz-Zuazaga"  
-"Julian A. Padget       Bill Page              Susan Pelzel"
-"Michel Petitot         Didier Pinchon         Ayal Pinkus"
-"Jose Alfredo Portes"
+"Julian A. Padget       Bill Page              David Parnas"
+"Susan Pelzel           Michel Petitot         Didier Pinchon"
+"Ayal Pinkus            Jose Alfredo Portes"
 "Claude Quitte"
 "Arthur C. Ralfs        Norman Ramsey          Anatoly Raportirenko"
 "Albert D. Rich         Michael Richardson     Renaud Rioboo"
diff --git a/changelog b/changelog
index d33c1b5..37c8d26 100644
--- a/changelog
+++ b/changelog
@@ -1,3 +1,8 @@
+20100608 tpd src/axiom-website/patches.html 20100608.04.tpd.patch
+20100608 tpd src/input/unittest1.input add David Parnas to credits
+20100608 tpd books/bookvol5 add David Parnas to credits
+20100608 tpd readme add David Parnas to credits
+20100608 dxp David Parnas <parnas@mcmaster.ca>
 20100608 tpd src/axiom-website/patches.html 20100608.03.tpd.patch
 20100608 tpd src/input/Makefile rule-based trig integration
 20100608 tpd src/input/richtrig000-099.input rule-based trig integration
diff --git a/readme b/readme
index ae416d5..ab068ce 100644
--- a/readme
+++ b/readme
@@ -246,9 +246,9 @@ at the axiom command prompt will prettyprint the list.
 "Jinzhong Niu"
 "Michael O'Connor       Summat Oemrawsingh     Kostas Oikonomou"
 "Humberto Ortiz-Zuazaga"  
-"Julian A. Padget       Bill Page              Susan Pelzel"
-"Michel Petitot         Didier Pinchon         Ayal Pinkus"
-"Jose Alfredo Portes"
+"Julian A. Padget       Bill Page              David Parnas"
+"Susan Pelzel           Michel Petitot         Didier Pinchon"
+"Ayal Pinkus            Jose Alfredo Portes"
 "Claude Quitte"
 "Arthur C. Ralfs        Norman Ramsey          Anatoly Raportirenko"
 "Albert D. Rich         Michael Richardson     Renaud Rioboo"
diff --git a/src/axiom-website/patches.html b/src/axiom-website/patches.html
index 81b09a9..61516bf 100644
--- a/src/axiom-website/patches.html
+++ b/src/axiom-website/patches.html
@@ -2864,6 +2864,8 @@ src/input/richexponential.input rule-based exponential integration<br/>
 books/bookvolbib add Lecerf[Le96], Dewar[Dew94], Brunelli[Bru09]<br/>
 <a href="patches/20100608.03.tpd.patch">20100608.03.tpd.patch</a>
 src/input/richtrig000-099.input rule-based trig integration<br/>
+<a href="patches/20100608.04.tpd.patch">20100608.04.tpd.patch</a>
+books/bookvol5 add David Parnas to credits<br/>
  </body>
 </html>
 
diff --git a/src/input/unittest1.input.pamphlet b/src/input/unittest1.input.pamphlet
index 771c058..646244e 100644
--- a/src/input/unittest1.input.pamphlet
+++ b/src/input/unittest1.input.pamphlet
@@ -326,9 +326,9 @@ Unit test the user level commands
 --RJinzhong Niu
 --RMichael O'Connor       Summat Oemrawsingh     Kostas Oikonomou
 --RHumberto Ortiz-Zuazaga  
---RJulian A. Padget       Bill Page              Susan Pelzel
---RMichel Petitot         Didier Pinchon         Ayal Pinkus
---RJose Alfredo Portes
+--RJulian A. Padget       Bill Page              David Parnas
+--RSusan Pelzel           Michel Petitot         Didier Pinchon
+--RAyal Pinkus            Jose Alfredo Portes
 --RClaude Quitte
 --RArthur C. Ralfs        Norman Ramsey          Anatoly Raportirenko
 --RAlbert D. Rich         Michael Richardson     Renaud Rioboo