diff --git a/5/date-dual.ged b/5/date-dual-invalid.ged
similarity index 98%
rename from 5/date-dual.ged
rename to 5/date-dual-invalid.ged
index 64e7246..68f5ca8 100644
--- a/5/date-dual.ged
+++ b/5/date-dual-invalid.ged
@@ -1,9 +1,13 @@
 0 HEAD
+1 SOUR conversion test
+1 SUBM @S1@
 1 CHAR UTF-8
 1 GEDC
 2 VERS 5.5.1
 2 FORM LINEAGE-LINKED
 1 NOTE Test for bug identified by Dave Thaler
+0 @S1@ SUBM
+1 NAME Luther Tychonievich
 0 @1@ INDI
 1 BIRT
 2 NOTE 1701/99
@@ -258,4 +262,3 @@
 2 NOTE FROM 1759/51 TO FEB 1759/51
 2 DATE FROM 1759/51 TO FEB 1759/51
 0 TRLR
-
diff --git a/5/date-dual-valid.ged b/5/date-dual-valid.ged
new file mode 100644
index 0000000..8fd68e0
--- /dev/null
+++ b/5/date-dual-valid.ged
@@ -0,0 +1,44 @@
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+1 SOUR conversion test
+1 SUBM @S1@
+1 CHAR UTF-8
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diff --git a/7/date-dual.ged b/7/date-dual-invalid.ged
similarity index 98%
rename from 7/date-dual.ged
rename to 7/date-dual-invalid.ged
index d868c69..a59da33 100644
--- a/7/date-dual.ged
+++ b/7/date-dual-invalid.ged
@@ -1,7 +1,11 @@
 0 HEAD
+1 SOUR conversion test
 1 GEDC
 2 VERS 7.0
 1 NOTE Test for bug identified by Dave Thaler
+1 SUBM @S1@
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+1 NAME Luther Tychonievich
 0 @1@ INDI
 1 BIRT
 2 NOTE 1701/99