diff --git a/Source/CPlusPlus/ProcessGrid.cc b/Source/CPlusPlus/ProcessGrid.cc
index b933ee30..ce959fc5 100644
--- a/Source/CPlusPlus/ProcessGrid.cc
+++ b/Source/CPlusPlus/ProcessGrid.cc
@@ -30,12 +30,6 @@ ProcessGrid::ProcessGrid(MPI_Comm world_comm, int process_slices) {
   ConstructProcessGrid_onlyslice_wrp(ih_this, &temp_comm, &process_slices);
 }
 
-////////////////////////////////////////////////////////////////////////////////
-ProcessGrid::ProcessGrid(MPI_Comm world_comm) {
-  MPI_Fint temp_comm = MPI_Comm_c2f(world_comm);
-  ConstructProcessGrid_default_wrp(ih_this, &temp_comm);
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 ProcessGrid::ProcessGrid(int process_slices) {
   MPI_Fint temp_comm = MPI_Comm_c2f(MPI_COMM_WORLD);
@@ -99,12 +93,6 @@ void ConstructGlobalProcessGrid(MPI_Comm world_comm, int process_slices,
                                            &be_verbose);
 }
 
-////////////////////////////////////////////////////////////////////////////////
-void ConstructGlobalProcessGrid(MPI_Comm world_comm, bool be_verbose) {
-  MPI_Fint temp_comm = MPI_Comm_c2f(world_comm);
-  ConstructGlobalProcessGrid_default_wrp(&temp_comm, &be_verbose);
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 void ConstructGlobalProcessGrid(int process_slices, bool be_verbose) {
   MPI_Fint temp_comm = MPI_Comm_c2f(MPI_COMM_WORLD);
diff --git a/Source/CPlusPlus/ProcessGrid.h b/Source/CPlusPlus/ProcessGrid.h
index 74383082..8b8f8d30 100644
--- a/Source/CPlusPlus/ProcessGrid.h
+++ b/Source/CPlusPlus/ProcessGrid.h
@@ -27,10 +27,6 @@ class ProcessGrid {
   //! a part of.
   //! \param[in] process_slices number of grid slices.
   ProcessGrid(MPI_Comm world_comm, int process_slices);
-  //! Construct the process grid.
-  //! \param[in] world_comm a communicator that every process in the grid is
-  //! a part of.
-  ProcessGrid(MPI_Comm world_comm);
   //! Construct the process grid from comm world
   //! \param[in] process_slices number of grid slices.
   ProcessGrid(int process_slices);
@@ -89,11 +85,6 @@ void ConstructGlobalProcessGrid(int process_rows, int process_columns,
 //! \param[in] be_verbose verbosity flag.
 void ConstructGlobalProcessGrid(MPI_Comm world_comm, int process_slices,
                                 bool be_verbose = false);
-//! Construct the global process grid.
-//! \param[in] world_comm a communicator that every process in the grid is
-//! a part of.
-//! \param[in] be_verbose verbosity flag.
-void ConstructGlobalProcessGrid(MPI_Comm world_comm, bool be_verbose = false);
 //! Construct the global process grid from comm world
 //! \param[in] process_slices number of grid slices.
 //! \param[in] be_verbose verbosity flag.