diff --git a/gramps/src/RelLib.py b/gramps/src/RelLib.py
index e04c0a255..9ce4325f4 100644
--- a/gramps/src/RelLib.py
+++ b/gramps/src/RelLib.py
@@ -1639,12 +1639,16 @@ class RelDataBase:
 
     def __init__(self):
         """creates a new RelDataBase"""
-        self.new()
         self.iprefix = "I%d"
         self.sprefix = "S%d"
         self.oprefix = "O%d"
         self.pprefix = "P%d"
         self.fprefix = "F%d"
+        self.familyMap = {}
+        self.personMap = {}
+        self.sourceMap = {}
+        self.placeMap = {}
+        self.new()
 
     def set_iprefix(self,val):
         if _id_reg.search(val):
@@ -1678,8 +1682,20 @@ class RelDataBase:
 
     def new(self):
         """initializes the RelDataBase to empty values"""
-        self.personMap = {}
+
+        # eliminate memory reference cycles for 1.5.2 garbage collection 
+        for f in self.familyMap.values():
+            f.Father = None
+            f.Mother = None
+            f.Children = []
         self.familyMap = {}
+
+        for p in self.personMap.values():
+            p.MainFamily = None
+            p.AltFamilyList = None
+            p.FamilyList = None
+        self.personMap = {}
+
         self.sourceMap = {}
         self.placeMap  = {}
         self.objectMap = {}
diff --git a/gramps/src/docgen/OpenOfficeDoc.py b/gramps/src/docgen/OpenOfficeDoc.py
index 049a5f388..7f17e9445 100644
--- a/gramps/src/docgen/OpenOfficeDoc.py
+++ b/gramps/src/docgen/OpenOfficeDoc.py
@@ -202,7 +202,8 @@ class OpenOfficeDoc(TextDoc):
         self.f.write(' style:parent-name="Graphics">')
         self.f.write('<style:properties style:vertical-pos="from-top"')
         self.f.write(' style:vertical-rel="paragraph"')
-        self.f.write(' style:horizontal-pos="from-left" syle:horizontal-rel="paragraph"')
+        self.f.write(' style:horizontal-pos="from-left"')
+        self.f.write(' style:horizontal-rel="paragraph"')
         self.f.write(' style:mirror="none" fo:clip="rect(0cm 0cm 0cm 0cm)"')
         self.f.write(' draw:luminance="0%" draw:contrast="0" draw:red="0%"')
         self.f.write(' draw:green="0%" draw:blue="0%" draw:gamma="1"')
@@ -307,8 +308,7 @@ class OpenOfficeDoc(TextDoc):
         if os.path.isfile(self.filename):
             os.unlink(self.filename)
 
-        os.system("cd " + self.tempdir + "; " + const.zipcmd + " " \
-                  + self.filename + " .")
+        os.system("cd %s; %s %s ." % (self.tempdir,const.zipcmd,self.filename))
 
         os.unlink(self.tempdir + os.sep + "META-INF" + os.sep + "manifest.xml")
         os.unlink(self.tempdir + os.sep + "content.xml")