diff --git a/OpenEXR/IlmImf/ImfDeepScanLineInputFile.cpp b/OpenEXR/IlmImf/ImfDeepScanLineInputFile.cpp
index b5e56bdaa6..2cb901852e 100644
--- a/OpenEXR/IlmImf/ImfDeepScanLineInputFile.cpp
+++ b/OpenEXR/IlmImf/ImfDeepScanLineInputFile.cpp
@@ -919,8 +919,7 @@ void DeepScanLineInputFile::initialize(const Header& header)
     }
     catch (...)
     {
-        delete _data;
-        _data=NULL;
+        // Don't delete _data here, leave that to caller
         throw;
     }
 }
@@ -936,8 +935,15 @@ DeepScanLineInputFile::DeepScanLineInputFile(InputPartData* part)
     _data->memoryMapped = _data->_streamData->is->isMemoryMapped();
     _data->version = part->version;
 
-    initialize(part->header);
-
+    try
+    {
+       initialize(part->header);
+    }
+    catch(...)
+    {
+        delete _data;
+        throw;
+    }
     _data->lineOffsets = part->chunkOffsets;
 
     _data->partNumber = part->partNumber;
@@ -980,7 +986,10 @@ DeepScanLineInputFile::DeepScanLineInputFile
     catch (IEX_NAMESPACE::BaseExc &e)
     {
         if (is)          delete is;
-        if (_data && _data->_streamData) delete _data->_streamData;
+        if (_data && _data->_streamData)
+        {
+            delete _data->_streamData;
+        }
         if (_data)       delete _data;
 
         REPLACE_EXC (e, "Cannot read image file "
@@ -990,7 +999,10 @@ DeepScanLineInputFile::DeepScanLineInputFile
     catch (...)
     {
         if (is)          delete is;
-        if (_data && _data->_streamData) delete _data->_streamData;
+        if (_data && _data->_streamData)
+        {
+            delete _data->_streamData;
+        }
         if (_data)       delete _data;
 
         throw;
@@ -1014,7 +1026,18 @@ DeepScanLineInputFile::DeepScanLineInputFile
 
     _data->version =version;
     
-    initialize (header);
+    try
+    {
+        initialize (header);
+    }
+    catch (...)
+    {
+        if (_data && _data->_streamData)
+        {
+            delete _data->_streamData;
+        }
+        if (_data)       delete _data;
+   }
 
     readLineOffsets (*_data->_streamData->is,
                      _data->lineOrder,
@@ -1046,8 +1069,9 @@ DeepScanLineInputFile::~DeepScanLineInputFile ()
         //
 
         if (_data->partNumber == -1 && _data->_streamData)
+        {
             delete _data->_streamData;
-
+        }
         delete _data;
     }
 }
diff --git a/OpenEXR/IlmImf/ImfDeepTiledInputFile.cpp b/OpenEXR/IlmImf/ImfDeepTiledInputFile.cpp
index ef7f88775f..9970f3f244 100644
--- a/OpenEXR/IlmImf/ImfDeepTiledInputFile.cpp
+++ b/OpenEXR/IlmImf/ImfDeepTiledInputFile.cpp
@@ -886,7 +886,15 @@ DeepTiledInputFile::DeepTiledInputFile (InputPartData* part) :
     _data (new Data (part->numThreads))
 {
     _data->_deleteStream=false;
-    multiPartInitialize(part);
+    try
+    {
+       multiPartInitialize(part);
+    }
+    catch(...)
+    {
+        delete _data;
+        throw;
+    }
 }
 
 
diff --git a/OpenEXR/IlmImf/ImfTiledInputFile.cpp b/OpenEXR/IlmImf/ImfTiledInputFile.cpp
index 20ff0e563d..4e5b4e3243 100644
--- a/OpenEXR/IlmImf/ImfTiledInputFile.cpp
+++ b/OpenEXR/IlmImf/ImfTiledInputFile.cpp
@@ -745,7 +745,10 @@ TiledInputFile::TiledInputFile (const char fileName[], int numThreads):
 
             delete _data->_streamData;
         }
-
+        if (_data)
+        {
+            delete _data;
+        }
         if (is != 0)
             delete is;
 
@@ -768,6 +771,10 @@ TiledInputFile::TiledInputFile (const char fileName[], int numThreads):
 
         if (is != 0)
             delete is;
+        if (_data)
+        {
+            delete _data;
+        }
         throw;
     }
 }
@@ -855,7 +862,15 @@ TiledInputFile::TiledInputFile (InputPartData* part)
 {
     _data = new Data (part->numThreads);
     _data->_deleteStream=false;
-    multiPartInitialize(part);
+    try
+    {
+      multiPartInitialize(part);
+    }
+    catch(...)
+    {
+        if (_data) delete _data;
+        throw;
+    }
 }