diff --git a/AUTHORS b/AUTHORS
index 549460635..4013f3ed3 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -22,5 +22,5 @@ of guile.texi.
 Anthony Green: wrote the original code in the 'threads' directory.
 
 Mikael Djurfeldt: wrote debug.c, debug.h, options.c, options.h,
-srcprop.c, srcprop.h, stacks.h, backtrace.c, backtrace.h.  Rewrote the
-code in 'threads'.  Many changes throughout.
+srcprop.c, srcprop.h, stacks.h, backtrace.c, backtrace.h, root.c,
+root.h.  Rewrote the code in 'threads'.  Many changes throughout.
diff --git a/README b/README
index 97bfc3fa2..7a060cdc6 100644
--- a/README
+++ b/README
@@ -88,7 +88,10 @@ between Guile and qt.
 
 Mikael Djurfeldt designed and implemented:
 * the source-level debugger,
-* the GDB patches to support debugging mixed Scheme/C code
+* stack overflow detection,
+* the GDB patches to support debugging mixed Scheme/C code,
 * the original implementation of weak hash tables,
-* the dynamic root, and
-* rewrote the `threads' interface.
+* the `threads' interface (rewriting Anthony Green's work), and
+* detection of circular references during printing.
+
+Gary Houston did a lot of work on the error handling code.
diff --git a/libguile/ChangeLog b/libguile/ChangeLog
index 032aaee17..f92c2a478 100644
--- a/libguile/ChangeLog
+++ b/libguile/ChangeLog
@@ -1,3 +1,15 @@
+Mon Oct 14 19:08:33 1996  Jim Blandy  <jimb@floss.cyclic.com>
+
+	Allocate data for structures on an eight-byte boundary, as
+	required by the tagging system.
+	* struct.c (alloc_struct): New function.
+	(scm_make_struct, scm_make_vtable_vtable): Call it.
+	* struct.h (scm_struct_n_extra_words): Bump to 3.
+	(scm_struct_i_ptr): New "field".
+	* gc.c (scm_gc_sweep): When we need to free the data, use the
+ 	information stored by alloc_struct to find the beginning of the
+ 	block allocated to the structure, so we can free it.
+
 Mon Oct 14 17:07:55 1996  Mikael Djurfeldt  <mdj@woody.nada.kth.se>
 
 	* init.c (scm_boot_guile_1): Moved scm_init_struct in front of