diff --git a/src/external/MusrRoot/doc/MusrRootDefinition.pdf b/src/external/MusrRoot/doc/MusrRootDefinition.pdf
index 7720b6f4..844a60d5 100644
Binary files a/src/external/MusrRoot/doc/MusrRootDefinition.pdf and b/src/external/MusrRoot/doc/MusrRootDefinition.pdf differ
diff --git a/src/external/MusrRoot/doc/MusrRootDefinition.tex b/src/external/MusrRoot/doc/MusrRootDefinition.tex
index 702e93fb..11ec0224 100644
--- a/src/external/MusrRoot/doc/MusrRootDefinition.tex
+++ b/src/external/MusrRoot/doc/MusrRootDefinition.tex
@@ -274,7 +274,7 @@ An example program \verb!write_musrRoot_runHeader! which is writing a full run h
 
 \begin{shaded}
 \begin{verbatim}  
-TMusrRunHeader *header = new TMusrRunHeader();
+std::unique_ptr<TMusrRunHeader> header = std::make_unique<TMusrRunHeader>();
 TMusrRunPhysicalQuantity prop;
 \end{verbatim}
 \end{shaded}
@@ -318,14 +318,15 @@ header->Set("DetectorInfo/Detector001/Time Zero Bin", 3419.0);
 
 \begin{shaded}
 \begin{verbatim}  
-TFile *f = new TFile(fileName, "RECREATE", "write_musrRoot_runHeader");
+std::unique_ptr<TFile> f = std::make_unique<TFile>(fileName, "RECREATE",
+                                                   "write_musrRoot_runHeader");
 if (f->IsZombie()) {
-  delete f;
   return -1;
 }
 
 // create the needed TFolder object
-TFolder *runHeader = new TFolder("RunHeader", "MusrRoot Run Header Info");
+std::unique_ptr<TFolder> runHeader = std::make_unique<TFolder>("RunHeader",
+                                                    "MusrRoot Run Header Info");
 
 // create the "directory" structure
 if (header->FillFolder(runHeader)) {
@@ -343,21 +344,22 @@ The following code snippet shows how the extract the full run header from the \m
 
 \begin{shaded}
 \begin{verbatim}  
-TFile *f = new TFile(fileName, "READ", "read_musrRoot_runHeader");
+std::unique_ptr<TFile> f = std::make_unique<TFile>(fileName, "READ",
+                                                   "read_musrRoot_runHeader");
 if (f->IsZombie()) {
-  delete f;
   return -1;
 }
 
-TFolder *runHeader = 0;
+TFolder *runHeader = nullptr;
 f->GetObject("RunHeader", runHeader);
-if (runHeader == 0) {
+if (runHeader == nullptr) {
   cerr << endl << ">> **ERROR** Couldn't get top folder RunHeader";
   closeFile(f);
   return -1;
 }
 
-TMusrRunHeader *header = new TMusrRunHeader(fileName);
+std::unique_ptr<TMusrRunHeader> header =
+               std::make_unique<TMusrRunHeader>(fileName);
 
 if (!header->ExtractAll(runHeader)) {
   cerr << endl << ">> **ERROR** couldn't extract all RunHeader information";
@@ -366,7 +368,6 @@ if (!header->ExtractAll(runHeader)) {
 }
 
 f->Close();
-delete f;
 \end{verbatim}
 \end{shaded}