diff --git a/ApplicationCode/Commands/IntersectionBoxCommands/RicAppendIntersectionBoxFeature.cpp b/ApplicationCode/Commands/IntersectionBoxCommands/RicAppendIntersectionBoxFeature.cpp
index ed887bc262..7ca78f1d48 100644
--- a/ApplicationCode/Commands/IntersectionBoxCommands/RicAppendIntersectionBoxFeature.cpp
+++ b/ApplicationCode/Commands/IntersectionBoxCommands/RicAppendIntersectionBoxFeature.cpp
@@ -64,7 +64,7 @@ void RicAppendIntersectionBoxFeature::onActionTriggered(bool isChecked)
         RiuMainWindow::instance()->selectAsCurrentItem(intersectionBox);
 
         RimView* rimView = NULL;
-        coll->firstAnchestorOrThisOfType(rimView);
+        coll->firstAncestorOrThisOfType(rimView);
         if (rimView)
         {
             rimView->showGridCells(false);
@@ -93,7 +93,7 @@ RimIntersectionBoxCollection* RicAppendIntersectionBoxFeature::intersectionBoxCo
     caf::SelectionManager::instance()->objectsByType(&selectedObjects);
     if (selectedObjects.size() == 1)
     {
-        selectedObjects[0]->firstAnchestorOrThisOfType(intersectionBoxColl);
+        selectedObjects[0]->firstAncestorOrThisOfType(intersectionBoxColl);
     }
 
     return intersectionBoxColl;
diff --git a/ApplicationCode/Commands/IntersectionBoxCommands/RicIntersectionBoxXSliceFeature.cpp b/ApplicationCode/Commands/IntersectionBoxCommands/RicIntersectionBoxXSliceFeature.cpp
index 67d0b08515..ac2b9228e1 100644
--- a/ApplicationCode/Commands/IntersectionBoxCommands/RicIntersectionBoxXSliceFeature.cpp
+++ b/ApplicationCode/Commands/IntersectionBoxCommands/RicIntersectionBoxXSliceFeature.cpp
@@ -68,7 +68,7 @@ void RicIntersectionBoxXSliceFeature::onActionTriggered(bool isChecked)
         RiuMainWindow::instance()->selectAsCurrentItem(intersectionBox);
 
         RimView* rimView = NULL;
-        coll->firstAnchestorOrThisOfType(rimView);
+        coll->firstAncestorOrThisOfType(rimView);
         if (rimView)
         {
             rimView->showGridCells(false);
diff --git a/ApplicationCode/Commands/IntersectionBoxCommands/RicIntersectionBoxYSliceFeature.cpp b/ApplicationCode/Commands/IntersectionBoxCommands/RicIntersectionBoxYSliceFeature.cpp
index e47c499aea..52541e5cbb 100644
--- a/ApplicationCode/Commands/IntersectionBoxCommands/RicIntersectionBoxYSliceFeature.cpp
+++ b/ApplicationCode/Commands/IntersectionBoxCommands/RicIntersectionBoxYSliceFeature.cpp
@@ -68,7 +68,7 @@ void RicIntersectionBoxYSliceFeature::onActionTriggered(bool isChecked)
         RiuMainWindow::instance()->selectAsCurrentItem(intersectionBox);
 
         RimView* rimView = NULL;
-        coll->firstAnchestorOrThisOfType(rimView);
+        coll->firstAncestorOrThisOfType(rimView);
         if (rimView)
         {
             rimView->showGridCells(false);
diff --git a/ApplicationCode/Commands/IntersectionBoxCommands/RicIntersectionBoxZSliceFeature.cpp b/ApplicationCode/Commands/IntersectionBoxCommands/RicIntersectionBoxZSliceFeature.cpp
index 4e5979c8a6..4f048d74ae 100644
--- a/ApplicationCode/Commands/IntersectionBoxCommands/RicIntersectionBoxZSliceFeature.cpp
+++ b/ApplicationCode/Commands/IntersectionBoxCommands/RicIntersectionBoxZSliceFeature.cpp
@@ -67,7 +67,7 @@ void RicIntersectionBoxZSliceFeature::onActionTriggered(bool isChecked)
         RiuMainWindow::instance()->selectAsCurrentItem(intersectionBox);
 
         RimView* rimView = NULL;
-        coll->firstAnchestorOrThisOfType(rimView);
+        coll->firstAncestorOrThisOfType(rimView);
         if (rimView)
         {
             rimView->showGridCells(false);
diff --git a/ApplicationCode/Commands/RicDeleteItemExec.cpp b/ApplicationCode/Commands/RicDeleteItemExec.cpp
index 3af56e5c94..203b1bffab 100644
--- a/ApplicationCode/Commands/RicDeleteItemExec.cpp
+++ b/ApplicationCode/Commands/RicDeleteItemExec.cpp
@@ -112,7 +112,7 @@ void RicDeleteItemExec::redo()
         }
 
         RimIntersectionBoxCollection* intersectionBoxColl;
-        parentObj->firstAnchestorOrThisOfType(intersectionBoxColl);
+        parentObj->firstAncestorOrThisOfType(intersectionBoxColl);
         if (view && intersectionBoxColl)
         {
             view->scheduleCreateDisplayModelAndRedraw();
diff --git a/ApplicationCode/ModelVisualization/Intersections/RivIntersectionBoxPartMgr.cpp b/ApplicationCode/ModelVisualization/Intersections/RivIntersectionBoxPartMgr.cpp
index 28c06e469f..26bdeb972f 100644
--- a/ApplicationCode/ModelVisualization/Intersections/RivIntersectionBoxPartMgr.cpp
+++ b/ApplicationCode/ModelVisualization/Intersections/RivIntersectionBoxPartMgr.cpp
@@ -85,7 +85,7 @@ void RivIntersectionBoxPartMgr::updateCellResultColor(size_t timeStepIndex)
     if (!m_intersectionBoxGenerator->isAnyGeometryPresent()) return;
 
     RimEclipseView* eclipseView;
-    m_rimIntersectionBox->firstAnchestorOrThisOfType(eclipseView);
+    m_rimIntersectionBox->firstAncestorOrThisOfType(eclipseView);
 
     if (eclipseView)
     {
@@ -148,7 +148,7 @@ void RivIntersectionBoxPartMgr::updateCellResultColor(size_t timeStepIndex)
     }
 
     RimGeoMechView* geoView;
-    m_rimIntersectionBox->firstAnchestorOrThisOfType(geoView);
+    m_rimIntersectionBox->firstAncestorOrThisOfType(geoView);
 
     if (geoView)
     {
@@ -405,7 +405,7 @@ cvf::ref<RivIntersectionHexGridInterface> RivIntersectionBoxPartMgr::createHexGr
 {
 
     RimEclipseView* eclipseView;
-    m_rimIntersectionBox->firstAnchestorOrThisOfType(eclipseView);
+    m_rimIntersectionBox->firstAncestorOrThisOfType(eclipseView);
     if (eclipseView)
     {
         RigMainGrid* grid = NULL;
@@ -416,7 +416,7 @@ cvf::ref<RivIntersectionHexGridInterface> RivIntersectionBoxPartMgr::createHexGr
     }
 
     RimGeoMechView* geoView;
-    m_rimIntersectionBox->firstAnchestorOrThisOfType(geoView);
+    m_rimIntersectionBox->firstAncestorOrThisOfType(geoView);
     if (geoView)
     {
         RigFemPart* femPart = geoView->geoMechCase()->geoMechData()->femParts()->part(0);
diff --git a/ApplicationCode/ProjectDataModel/RimIntersectionBox.cpp b/ApplicationCode/ProjectDataModel/RimIntersectionBox.cpp
index 4a8cbc25ca..7978de2b5d 100644
--- a/ApplicationCode/ProjectDataModel/RimIntersectionBox.cpp
+++ b/ApplicationCode/ProjectDataModel/RimIntersectionBox.cpp
@@ -329,7 +329,7 @@ void RimIntersectionBox::rebuildGeometryAndScheduleCreateDisplayModel()
     m_intersectionBoxPartMgr = nullptr;
 
     RimView* rimView = NULL;
-    this->firstAnchestorOrThisOfType(rimView);
+    this->firstAncestorOrThisOfType(rimView);
     if (rimView)
     {
         rimView->scheduleCreateDisplayModelAndRedraw();
@@ -384,12 +384,12 @@ void RimIntersectionBox::clampSinglePlaneValues()
 cvf::BoundingBox RimIntersectionBox::currentCellBoundingBox() 
 {
     RimCase* rimCase = NULL;
-    this->firstAnchestorOrThisOfType(rimCase);
+    this->firstAncestorOrThisOfType(rimCase);
     
     CVF_ASSERT(rimCase);
 
     RimEclipseView* eclView = nullptr;
-    this->firstAnchestorOrThisOfType(eclView);
+    this->firstAncestorOrThisOfType(eclView);
 
     bool useAllCells = true;
     if (eclView)
diff --git a/ApplicationCode/ProjectDataModel/RimIntersectionBoxCollection.cpp b/ApplicationCode/ProjectDataModel/RimIntersectionBoxCollection.cpp
index 73ddd7fc86..8b38daf16e 100644
--- a/ApplicationCode/ProjectDataModel/RimIntersectionBoxCollection.cpp
+++ b/ApplicationCode/ProjectDataModel/RimIntersectionBoxCollection.cpp
@@ -129,7 +129,7 @@ void RimIntersectionBoxCollection::fieldChangedByUi(const caf::PdmFieldHandle* c
     if (changedField == &isActive)
     {
         RimView* rimView = NULL;
-        firstAnchestorOrThisOfType(rimView);
+        firstAncestorOrThisOfType(rimView);
         if (rimView)
         {
             rimView->scheduleCreateDisplayModelAndRedraw();
diff --git a/ApplicationCode/ProjectDataModel/RimMainPlotCollection.cpp b/ApplicationCode/ProjectDataModel/RimMainPlotCollection.cpp
index f963eca233..d778da5ccf 100644
--- a/ApplicationCode/ProjectDataModel/RimMainPlotCollection.cpp
+++ b/ApplicationCode/ProjectDataModel/RimMainPlotCollection.cpp
@@ -109,7 +109,7 @@ void RimMainPlotCollection::showPlotWindow()
             dockWidget->setWidget(projPropView);
 
             RimProject* proj = NULL;
-            this->firstAnchestorOrThisOfType(proj);
+            this->firstAncestorOrThisOfType(proj);
 
             projPropView->setPdmItem(this);
 
diff --git a/ApplicationCode/UserInterface/RiuViewerCommands.cpp b/ApplicationCode/UserInterface/RiuViewerCommands.cpp
index d4a38d4187..0b0a26a855 100644
--- a/ApplicationCode/UserInterface/RiuViewerCommands.cpp
+++ b/ApplicationCode/UserInterface/RiuViewerCommands.cpp
@@ -158,7 +158,7 @@ void RiuViewerCommands::displayContextMenu(QMouseEvent* event)
         CVF_ASSERT(activeView);
 
         RimCase* rimCase = NULL;
-        activeView->firstAnchestorOrThisOfType(rimCase);
+        activeView->firstAncestorOrThisOfType(rimCase);
         if (rimCase)
         {
             displayModelOffset = rimCase->displayModelOffset();