@@ -22,7 +22,7 @@
 SMALL_FIRST = re.compile(r'^([%s]*)(%s)\b' % (PUNCT, SMALL), re.I)
 SMALL_LAST = re.compile(r'\b(%s)[%s]?$' % (SMALL, PUNCT), re.I)
 SUBPHRASE = re.compile(r'([:.;?!][ ])(%s)' % SMALL)
-APOS_SECOND = re.compile(r"^[dol]{1}['‘]{1}[a-z]+$", re.I)
+APOS_SECOND = re.compile(r"^[dol]{1}['‘]{1}[a-z]+(?:['s]{2})?$", re.I)
 ALL_CAPS = re.compile(r'^[A-Z\s\d%s]+$' % PUNCT)
 UC_INITIALS = re.compile(r"^(?:[A-Z]{1}\.{1}|[A-Z]{1}\.{1}[A-Z]{1})+$")
 MAC_MC = re.compile(r"^([Mm]c)(\w.+)")
 
@@ -172,6 +172,10 @@
         "o'grange O'grange o'Grange O'Grange",
         "O'Grange O'Grange O'Grange O'Grange",
     ),
+    (
+        "o'grange's O'grange's o'Grange's O'Grange's",
+        "O'Grange's O'Grange's O'Grange's O'Grange's",
+    ),
     (
         "O'GranGe",
         "O'GranGe",