diff --git a/doc/txt/heritage.txt b/doc/txt/heritage.txt
index e77639ddfaaea0a53f71ab6898880a05e75b89a5..92e1c7f116894e6895e231c1645d12837acb7eef 100644
--- a/doc/txt/heritage.txt
+++ b/doc/txt/heritage.txt
@@ -11,6 +11,15 @@ Notes:  	modules to do whatever
 
 ======================================================================
 
+Origin:         MPICH2 source code, http://www-unix.mcs.anl.gov/mpi/mpich2/
+Date:           2005
+Destination:    src/api/pmi.[ch]
+License:        Open Source, see listing for details
+Imported by:    Morris Jette
+Notes:		pmi.h is taken directly from the MPICH2 code base, 
+                pmi.c is an LLNL implementation of the functions defined
+                in pmi.h
+
 Origin:		LLNL Software Development Toolbox 	
 Date:    	2002
 Destination:	src/common/cbuf.[ch]