diff --git a/ImageGallery/src/org/sleuthkit/autopsy/imagegallery/gui/Toolbar.fxml b/ImageGallery/src/org/sleuthkit/autopsy/imagegallery/gui/Toolbar.fxml
index a8ced6deda..a036ec0bd6 100644
--- a/ImageGallery/src/org/sleuthkit/autopsy/imagegallery/gui/Toolbar.fxml
+++ b/ImageGallery/src/org/sleuthkit/autopsy/imagegallery/gui/Toolbar.fxml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
 <?import javafx.geometry.Insets?>
+<?import javafx.scene.control.CheckBox?>
 <?import javafx.scene.control.ComboBox?>
 <?import javafx.scene.control.Label?>
 <?import javafx.scene.control.MenuItem?>
@@ -12,29 +13,41 @@
 <?import javafx.scene.image.ImageView?>
 <?import javafx.scene.layout.HBox?>
 
-<fx:root minWidth="-1.0" orientation="HORIZONTAL" prefWidth="-1.0" type="javafx.scene.control.ToolBar" xmlns="http://javafx.com/javafx/8.0.60" xmlns:fx="http://javafx.com/fxml/1">
+<fx:root minWidth="-1.0" orientation="HORIZONTAL" prefWidth="-1.0" type="javafx.scene.control.ToolBar" xmlns="http://javafx.com/javafx/8.0.141" xmlns:fx="http://javafx.com/fxml/1">
     <items> 
         <HBox alignment="CENTER" spacing="5.0">
             <children>
-                <Label fx:id="groupByLabel" text="Group By:">
-                    <labelFor>
-                        <ComboBox fx:id="groupByBox" editable="false" />
-                    </labelFor>
+                <Label  mnemonicParsing="false" text=" Data Source: ">
+                    <graphic>
+                        <ImageView fitHeight="16.0" fitWidth="16.0" pickOnBounds="true" preserveRatio="true">
+                            <image>
+                                <Image url="@../images/datasource.png" />
+                            </image>
+                        </ImageView>
+                    </graphic>
                 </Label>
-                <fx:reference source="groupByBox" />
-      
+                <ComboBox fx:id="dataSourceComboBox" editable="false" />
+    
             </children>
         </HBox>
-      <ImageView fx:id="sortHelpImageView" fitHeight="16.0" fitWidth="16.0" pickOnBounds="true" preserveRatio="true">
-         <image>
-            <Image url="@../images/question-frame.png" />
-         </image>
-      </ImageView>
+        <HBox alignment="CENTER" spacing="5.0">
+            <children>
+                <Label fx:id="groupByLabel" text="Group By:">
+                  
+                </Label>
+                <ComboBox fx:id="groupByBox" prefWidth="100.0" />
+            </children>
+        </HBox>
+        <ImageView fx:id="sortHelpImageView" fitHeight="16.0" fitWidth="16.0" pickOnBounds="true" preserveRatio="true">
+            <image>
+                <Image url="@../images/question-frame.png" />
+            </image>
+        </ImageView>
           
   
    
    
-        <Separator orientation="VERTICAL" prefHeight="-1.0" prefWidth="10.0" />
+        <Separator orientation="VERTICAL" prefHeight="-1.0" prefWidth="20.0" />
         <HBox alignment="CENTER" spacing="5.0">
             <children>
                 <Label fx:id="tagImageViewLabel" text="Tag Group's Files:">
@@ -76,7 +89,7 @@
                 <Insets left="5.0" />
             </padding>
         </HBox>
-        <Separator orientation="VERTICAL" prefHeight="-1.0" prefWidth="10.0" />
+        <Separator orientation="VERTICAL" prefHeight="-1.0" prefWidth="20.0" />
         <HBox alignment="CENTER" spacing="5.0">
             <children>
                 <Label fx:id="thumbnailSizeLabel" text="Thumbnail Size (px):">
diff --git a/ImageGallery/src/org/sleuthkit/autopsy/imagegallery/gui/Toolbar.java b/ImageGallery/src/org/sleuthkit/autopsy/imagegallery/gui/Toolbar.java
index 319a824118..689dea792d 100644
--- a/ImageGallery/src/org/sleuthkit/autopsy/imagegallery/gui/Toolbar.java
+++ b/ImageGallery/src/org/sleuthkit/autopsy/imagegallery/gui/Toolbar.java
@@ -1,7 +1,7 @@
 /*
  * Autopsy Forensic Browser
  *
- * Copyright 2013-16 Basis Technology Corp.
+ * Copyright 2013-18 Basis Technology Corp.
  * Contact: carrier <at> sleuthkit <dot> org
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -21,18 +21,21 @@ package org.sleuthkit.autopsy.imagegallery.gui;
 import com.google.common.collect.Lists;
 import java.util.Arrays;
 import java.util.List;
+import java.util.Optional;
 import java.util.logging.Level;
 import javafx.application.Platform;
 import javafx.beans.InvalidationListener;
 import javafx.beans.Observable;
 import javafx.beans.property.DoubleProperty;
 import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
 import javafx.fxml.FXML;
 import javafx.geometry.Insets;
 import javafx.scene.Cursor;
 import javafx.scene.Node;
 import javafx.scene.control.ComboBox;
 import javafx.scene.control.Label;
+import javafx.scene.control.ListCell;
 import javafx.scene.control.MenuItem;
 import javafx.scene.control.Slider;
 import javafx.scene.control.SplitMenuButton;
@@ -46,15 +49,16 @@ import org.controlsfx.control.PopOver;
 import org.openide.util.NbBundle;
 import org.sleuthkit.autopsy.casemodule.Case;
 import org.sleuthkit.autopsy.coreutils.Logger;
+import org.sleuthkit.autopsy.datamodel.DhsImageCategory;
 import org.sleuthkit.autopsy.imagegallery.FXMLConstructor;
 import org.sleuthkit.autopsy.imagegallery.ImageGalleryController;
 import org.sleuthkit.autopsy.imagegallery.actions.CategorizeGroupAction;
 import org.sleuthkit.autopsy.imagegallery.actions.TagGroupAction;
-import org.sleuthkit.autopsy.datamodel.DhsImageCategory;
 import org.sleuthkit.autopsy.imagegallery.datamodel.DrawableAttribute;
 import org.sleuthkit.autopsy.imagegallery.datamodel.grouping.DrawableGroup;
 import org.sleuthkit.autopsy.imagegallery.datamodel.grouping.GroupSortBy;
 import org.sleuthkit.autopsy.imagegallery.datamodel.grouping.GroupViewState;
+import org.sleuthkit.datamodel.DataSource;
 import org.sleuthkit.datamodel.TskCoreException;
 
 /**
@@ -66,39 +70,37 @@ public class Toolbar extends ToolBar {
 
     private static final int SIZE_SLIDER_DEFAULT = 100;
 
+    @FXML
+    private ComboBox<Optional<DataSource>> dataSourceComboBox;
     @FXML
     private ImageView sortHelpImageView;
-
     @FXML
     private ComboBox<DrawableAttribute<?>> groupByBox;
-
     @FXML
     private Slider sizeSlider;
-
     @FXML
     private SplitMenuButton catGroupMenuButton;
-
     @FXML
     private SplitMenuButton tagGroupMenuButton;
-
     @FXML
     private Label groupByLabel;
-
     @FXML
     private Label tagImageViewLabel;
-
     @FXML
     private Label categoryImageViewLabel;
-
     @FXML
     private Label thumbnailSizeLabel;
 
-    private final ImageGalleryController controller;
     private SortChooser<DrawableGroup, GroupSortBy> sortChooser;
 
+    private final ImageGalleryController controller;
+    private final ObservableList<Optional<DataSource>> dataSources = FXCollections.observableArrayList();
+
     private final InvalidationListener queryInvalidationListener = new InvalidationListener() {
-        public void invalidated(Observable o) {
+        @Override
+        public void invalidated(Observable invalidated) {
             controller.getGroupManager().regroup(
+                    //dataSourceComboBox.getSelectionModel().getSelectedItem(), TODO-1010/7: incorporate the selected datasource into this call.
                     groupByBox.getSelectionModel().getSelectedItem(),
                     sortChooser.getComparator(),
                     sortChooser.getSortOrder(),
@@ -106,10 +108,6 @@ public class Toolbar extends ToolBar {
         }
     };
 
-    public DoubleProperty thumbnailSizeProperty() {
-        return sizeSlider.valueProperty();
-    }
-
     @FXML
     @NbBundle.Messages({"Toolbar.groupByLabel=Group By:",
         "Toolbar.sortByLabel=Sort By:",
@@ -121,21 +119,41 @@ public class Toolbar extends ToolBar {
         "Toolbar.sortHelp=The sort direction (ascending/descending) affects the queue of unseen groups that Image Gallery maintains, but changes to this queue aren't apparent until the \"Next Unseen Group\" button is pressed.",
         "Toolbar.sortHelpTitle=Group Sorting",})
     void initialize() {
-        assert catGroupMenuButton != null : "fx:id=\"catSelectedMenubutton\" was not injected: check your FXML file 'Toolbar.fxml'.";
         assert groupByBox != null : "fx:id=\"groupByBox\" was not injected: check your FXML file 'Toolbar.fxml'.";
+        assert dataSourceComboBox != null : "fx:id=\"dataSourceComboBox\" was not injected: check your FXML file 'Toolbar.fxml'.";
+        assert sortHelpImageView != null : "fx:id=\"sortHelpImageView\" was not injected: check your FXML file 'Toolbar.fxml'.";
+        assert tagImageViewLabel != null : "fx:id=\"tagImageViewLabel\" was not injected: check your FXML file 'Toolbar.fxml'.";
+        assert tagGroupMenuButton != null : "fx:id=\"tagGroupMenuButton\" was not injected: check your FXML file 'Toolbar.fxml'.";
+        assert categoryImageViewLabel != null : "fx:id=\"categoryImageViewLabel\" was not injected: check your FXML file 'Toolbar.fxml'.";
+        assert catGroupMenuButton != null : "fx:id=\"catGroupMenuButton\" was not injected: check your FXML file 'Toolbar.fxml'.";
+        assert thumbnailSizeLabel != null : "fx:id=\"thumbnailSizeLabel\" was not injected: check your FXML file 'Toolbar.fxml'.";
         assert sizeSlider != null : "fx:id=\"sizeSlider\" was not injected: check your FXML file 'Toolbar.fxml'.";
-        assert tagGroupMenuButton != null : "fx:id=\"tagSelectedMenubutton\" was not injected: check your FXML file 'Toolbar.fxml'.";
 
         controller.viewState().addListener((observable, oldViewState, newViewState) -> {
             Platform.runLater(() -> syncGroupControlsEnabledState(newViewState));
         });
         syncGroupControlsEnabledState(controller.viewState().get());
 
+        dataSourceComboBox.setCellFactory(param -> new DataSourceCell());
+        dataSourceComboBox.setButtonCell(new DataSourceCell());
+        dataSourceComboBox.setItems(dataSources);
+
         try {
+            /*
+             * TODO-1005: Getting the datasources and the tagnames are Db
+             * querries. We should probably push them off to a BG thread.
+             */
+            dataSources.add(Optional.empty());
+            controller.getSleuthKitCase().getDataSources()
+                    .forEach(dataSource -> dataSources.add(Optional.of(dataSource)));
+            /* TODO: 1010/7 push data source selected in dialog into UI */
+            dataSourceComboBox.getSelectionModel().selectFirst();
+
             TagGroupAction followUpGroupAction = new TagGroupAction(controller.getTagsManager().getFollowUpTagName(), controller);
             tagGroupMenuButton.setOnAction(followUpGroupAction);
             tagGroupMenuButton.setText(followUpGroupAction.getText());
             tagGroupMenuButton.setGraphic(followUpGroupAction.getGraphic());
+
         } catch (TskCoreException ex) {
             /*
              * The problem appears to be a timing issue where a case is closed
@@ -147,8 +165,7 @@ public class Toolbar extends ToolBar {
              */
             if (Case.isCaseOpen()) {
                 LOGGER.log(Level.WARNING, "Could not create Follow Up tag menu item", ex); //NON-NLS
-            }
-            else {
+            } else {
                 // don't add stack trace to log because it makes looking for real errors harder
                 LOGGER.log(Level.INFO, "Unable to get tag name. Case is closed."); //NON-NLS
             }
@@ -156,7 +173,7 @@ public class Toolbar extends ToolBar {
         tagGroupMenuButton.showingProperty().addListener(showing -> {
             if (tagGroupMenuButton.isShowing()) {
                 List<MenuItem> selTagMenues = Lists.transform(controller.getTagsManager().getNonCategoryTagNames(),
-                        tn -> GuiUtils.createAutoAssigningMenuItem(tagGroupMenuButton, new TagGroupAction(tn, controller)));
+                        tagName -> GuiUtils.createAutoAssigningMenuItem(tagGroupMenuButton, new TagGroupAction(tagName, controller)));
                 tagGroupMenuButton.getItems().setAll(selTagMenues);
             }
         });
@@ -180,7 +197,7 @@ public class Toolbar extends ToolBar {
 
         groupByBox.setItems(FXCollections.observableList(DrawableAttribute.getGroupableAttrs()));
         groupByBox.getSelectionModel().select(DrawableAttribute.PATH);
-        groupByBox.getSelectionModel().selectedItemProperty().addListener(queryInvalidationListener);
+
         groupByBox.disableProperty().bind(ImageGalleryController.getDefault().regroupDisabled());
         groupByBox.setCellFactory(listView -> new AttributeListCell());
         groupByBox.setButtonCell(new AttributeListCell());
@@ -195,9 +212,8 @@ public class Toolbar extends ToolBar {
             queryInvalidationListener.invalidated(observable);
         });
 
-        sortChooser.sortOrderProperty().addListener(queryInvalidationListener);
         sortChooser.setComparator(controller.getGroupManager().getSortBy());
-        getItems().add(1, sortChooser);
+        getItems().add(2, sortChooser);
         sortHelpImageView.setCursor(Cursor.HAND);
 
         sortHelpImageView.setOnMouseClicked(clicked -> {
@@ -208,6 +224,13 @@ public class Toolbar extends ToolBar {
                     sortHelpImageView.getImage(), text);
         });
 
+        dataSourceComboBox.getSelectionModel().selectedItemProperty().addListener(queryInvalidationListener);
+        groupByBox.getSelectionModel().selectedItemProperty().addListener(queryInvalidationListener);
+        sortChooser.sortOrderProperty().addListener(queryInvalidationListener);
+    }
+
+    public DoubleProperty thumbnailSizeProperty() {
+        return sizeSlider.valueProperty();
     }
 
     /**
@@ -237,10 +260,16 @@ public class Toolbar extends ToolBar {
         popOver.show(owner);
     }
 
+    /**
+     * Disable the tag and catagory controls if and only if there is no group
+     * selected.
+     *
+     * @param newViewState The GroupViewState to use as a source of the
+     *                     selection.
+     */
     private void syncGroupControlsEnabledState(GroupViewState newViewState) {
-        boolean noGroupSelected = newViewState == null
-                ? true
-                : newViewState.getGroup() == null;
+        boolean noGroupSelected = (null == newViewState)
+                                  || (null == newViewState.getGroup());
 
         tagGroupMenuButton.setDisable(noGroupSelected);
         catGroupMenuButton.setDisable(noGroupSelected);
@@ -257,4 +286,20 @@ public class Toolbar extends ToolBar {
         this.controller = controller;
         FXMLConstructor.construct(this, "Toolbar.fxml"); //NON-NLS
     }
+
+    /**
+     * Cell used to represent a DataSource in the dataSourceComboBoc
+     */
+    static private class DataSourceCell extends ListCell<Optional<DataSource>> {
+
+        @Override
+        protected void updateItem(Optional<DataSource> item, boolean empty) {
+            super.updateItem(item, empty);
+            if (empty || item == null) {
+                setText("");
+            } else {
+                setText(item.map(DataSource::getName).orElse("All"));
+            }
+        }
+    }
 }
diff --git a/ImageGallery/src/org/sleuthkit/autopsy/imagegallery/images/datasource.png b/ImageGallery/src/org/sleuthkit/autopsy/imagegallery/images/datasource.png
new file mode 100644
index 0000000000..a0fbfcfb79
Binary files /dev/null and b/ImageGallery/src/org/sleuthkit/autopsy/imagegallery/images/datasource.png differ