diff --git a/Source/UI/Gauges/UIPetInfoBarGraph.cpp b/Source/UI/Gauges/UIPetInfoBarGraph.cpp
index 16f997cd..60e33f95 100644
--- a/Source/UI/Gauges/UIPetInfoBarGraph.cpp
+++ b/Source/UI/Gauges/UIPetInfoBarGraph.cpp
@@ -70,3 +70,13 @@ void UIPetInfoBarGraph::Paint() {
     this->DrawBitmap(barMiddle->image.width * x + barLeft->image.width, 0, &barRight->image, true);
   }
 }
+
+// OFFSET: 0x0086D380
+// FUNCTION: fn_11045
+UIINT64BarGraph::UIINT64BarGraph(UIWindowContext& context) : UIWindow(context, 0), m_current(0), m_maximum(0) {
+}
+
+// OFFSET: 0x0086E1B0
+// FUNCTION: fn_11066
+UIPetInfoBarGraph::UIPetInfoBarGraph(UIWindowContext& context) : UIWindow(context, 0), unknown_007C(0) {
+}
diff --git a/Source/UI/UIBarGraph.cpp b/Source/UI/UIBarGraph.cpp
index 9c656d7b..99f90732 100644
--- a/Source/UI/UIBarGraph.cpp
+++ b/Source/UI/UIBarGraph.cpp
@@ -9,11 +9,12 @@
 #include <string>
 #include <windows.h>
 
-class UIBarGraph2 : public UIWindow {
+class UIBarGraph2 : public UIBarGraph {
 public:
+  explicit UIBarGraph2(UIWindowContext& context);
+
   void Paint() override;
 
-  /* 007C */ float m_value;
   /* 0080 */ int m_vertical;
   /* 0084 */ unsigned char m_backgroundRed;
   /* 0085 */ unsigned char unknown_0085[3];
@@ -28,6 +29,13 @@ public:
   /* 0098 */ unsigned char m_fillBlue;
 };
 
+// OFFSET: 0x0086C190
+
+// OFFSET: 0x0086C240
+// FUNCTION: fn_11023
+UIBarGraph3::UIBarGraph3(UIWindowContext& context) : UIWindow(context, 0), m_current(nullptr), m_maximum(nullptr) {
+}
+
 // OFFSET: 0x0086C310
 // FUNCTION: fn_11024
 UIBarGraphHomun::UIBarGraphHomun(UIWindowContext& context) : UIWindow(context, 0) {
diff --git a/Source/UI/UIBarGraph.h b/Source/UI/UIBarGraph.h
index 8d854a34..7f402dba 100644
--- a/Source/UI/UIBarGraph.h
+++ b/Source/UI/UIBarGraph.h
@@ -10,6 +10,9 @@ struct UIButtonContext;
 
 class UIBarGraph : public UIWindow {
 public:
+  explicit UIBarGraph(UIWindowContext& context) : UIWindow(context, 0), m_value(0) {
+  }
+
   void Paint() override;
 
   void SetValue(float value);
@@ -19,7 +22,12 @@ public:
 
 class UIBarGraph3 : public UIWindow {
 public:
+  explicit UIBarGraph3(UIWindowContext& context);
   ~UIBarGraph3() override;
+
+protected:
+  /* 007C */ const int* m_current;
+  /* 0080 */ const int* m_maximum;
 };
 
 class UIBarGraph4 : public UIBarGraph3 {
@@ -30,14 +38,14 @@ public:
   void SetValues(const int* current, const int* maximum);
 
 protected:
-  /* 007C */ const int* m_current;
-  /* 0080 */ const int* m_maximum;
   /* 0084 */ bool m_plainColor;
   UIButtonContext* m_controls;
 };
 
 class UIINT64BarGraph : public UIWindow {
 public:
+  explicit UIINT64BarGraph(UIWindowContext& context);
+
   void Paint() override;
   void Slot28(int x, int y) override;
 
@@ -53,6 +61,8 @@ protected:
 
 class UIPetInfoBarGraph : public UIWindow {
 public:
+  explicit UIPetInfoBarGraph(UIWindowContext& context);
+
   void Paint() override;
   void SetValue(int value);