diff --git a/gramps/src/plugins/DetAncestralReport.py b/gramps/src/plugins/DetAncestralReport.py
index 7a8fd95d0..7bf2d8db9 100644
--- a/gramps/src/plugins/DetAncestralReport.py
+++ b/gramps/src/plugins/DetAncestralReport.py
@@ -82,11 +82,28 @@ class DetAncestorReport(Report):
         #print "Children= ", len(family.getChildList())
         if num_children > 0:
             self.doc.start_paragraph("ChildTitle")
-            mother= family.getMother().getPrimaryName().getRegularName()
-            father= family.getFather().getPrimaryName().getRegularName()
+            mom = family.getMother()
+            dad = family.getFather()
+            if mom:
+                mother = mom.getPrimaryName().getRegularName()
+            if dad:
+                father = dad.getPrimaryName().getRegularName()
+
             if num_children == 1:
-                self.doc.write_text(_("Child of %s and %s is:") % (mother, father))
-            else: self.doc.write_text(_("Children of %s and %s are:") % (mother, father))
+                if mom and dad:
+                    self.doc.write_text(_("Child of %s and %s is:") % (mother, father))
+                elif mom:
+                    self.doc.write_text(_("Child of %s is:") % mother)
+                elif dad:
+                    self.doc.write_text(_("Child of %s is:") % father)
+            else:
+                if mom and dad:
+                    self.doc.write_text(_("Children of %s and %s are:") % (mother, father))
+                elif mom:
+                    self.doc.write_text(_("Children of %s are:") % mother)
+                elif dad:
+                    self.doc.write_text(_("Children of %s are:") % father)
+                    
             self.doc.end_paragraph()
 
             for child in family.getChildList():
diff --git a/gramps/src/plugins/GraphViz.py b/gramps/src/plugins/GraphViz.py
index 3a8b9afe5..087d4a434 100644
--- a/gramps/src/plugins/GraphViz.py
+++ b/gramps/src/plugins/GraphViz.py
@@ -287,9 +287,9 @@ def write_dot(file, ind_list, orien, width, height, tb_margin,
     file.write("center=1;\n")
     file.write("margin=0.5;\n")
     file.write("ratio=fill;\n")
-    file.write("size=\"%3.1f,%3.1f\";\n" % ((width*hpages)-(lr_margin*2)-((hpages-1)*1.0),
+    file.write("size=\"%3.1fin,%3.1fin\";\n" % ((width*hpages)-(lr_margin*2)-((hpages-1)*1.0),
                                             (height*vpages)-(tb_margin*2)-((vpages-1)*1.0)))
-    file.write("page=\"%3.1f,%3.1f\";\n" % (width,height))
+    file.write("page=\"%3.1fin,%3.1fin\";\n" % (width,height))
 
     if orien == PAPER_LANDSCAPE:
         file.write("rotate=90;\n")