diff --git a/2015/burton/Makefile b/2015/burton/Makefile
index 1ad4e4857..d061ab80a 100644
--- a/2015/burton/Makefile
+++ b/2015/burton/Makefile
@@ -221,6 +221,7 @@ clean:
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
 	${RM} -rf *.dSYM calc ecalc
+	${RM} -f ecalc.alt
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2020/endoh3/Makefile b/2020/endoh3/Makefile
index bc6d21f2a..e20cba9f5 100644
--- a/2020/endoh3/Makefile
+++ b/2020/endoh3/Makefile
@@ -221,7 +221,7 @@ clean:
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
 	${RM} -rf *.dSYM
-	${RM} -f clock.c clock
+	${RM} -f clock.c clock clock.alt.c
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/tmp/manifest.csv b/tmp/manifest.csv
index 73bd4e858..8fc29bebc 100644
--- a/tmp/manifest.csv
+++ b/tmp/manifest.csv
@@ -1799,8 +1799,6 @@
 2001,westley,westley.alt.c,40,true,c,true,alternative source
 2001,westley,westley.orig.c,50,true,c,true,original source
 2001,westley,try.sh,100,true,shellscript,true,how to run
-2001,westley,westley.punch.c,100,true,c,true,Punch card code
-2001,westley,westley.sort.c,100,true,c,true,Sorted code
 2001,westley,2001_westley.tar.bz2,100000,false,tbz2,false,download entry source
 2001,westley,index.html,2000000000,false,html,false,entry home page
 2001,westley,README.md,4294967295,true,markdown,true,markdown source for index.html
diff --git a/tmp/manifest.numbers b/tmp/manifest.numbers
index 5a9d372d4..b45d900ce 100644
Binary files a/tmp/manifest.numbers and b/tmp/manifest.numbers differ
diff --git a/tmp/path_list.found.txt b/tmp/path_list.found.txt
index c661e2bde..2bdae0e0c 100644
--- a/tmp/path_list.found.txt
+++ b/tmp/path_list.found.txt
@@ -1804,8 +1804,6 @@
 2001/westley/westley.alt.c
 2001/westley/westley.c
 2001/westley/westley.orig.c
-2001/westley/westley.punch.c
-2001/westley/westley.sort.c
 2001/williams/.entry.json
 2001/williams/.gitignore
 2001/williams/.path
diff --git a/tmp/path_list.manifest.txt b/tmp/path_list.manifest.txt
index c661e2bde..2bdae0e0c 100644
--- a/tmp/path_list.manifest.txt
+++ b/tmp/path_list.manifest.txt
@@ -1804,8 +1804,6 @@
 2001/westley/westley.alt.c
 2001/westley/westley.c
 2001/westley/westley.orig.c
-2001/westley/westley.punch.c
-2001/westley/westley.sort.c
 2001/williams/.entry.json
 2001/williams/.gitignore
 2001/williams/.path
diff --git a/tmp/path_list.required.txt b/tmp/path_list.required.txt
index 21a5e4070..0204f1ff5 100644
--- a/tmp/path_list.required.txt
+++ b/tmp/path_list.required.txt
@@ -1302,8 +1302,6 @@
 2001/westley/westley.alt.c
 2001/westley/westley.c
 2001/westley/westley.orig.c
-2001/westley/westley.punch.c
-2001/westley/westley.sort.c
 2001/williams/.entry.json
 2001/williams/.gitignore
 2001/williams/Makefile