diff --git a/src/Microsoft.Framework.Localization.Abstractions/IStringLocalizer.cs b/src/Microsoft.Framework.Localization.Abstractions/IStringLocalizer.cs
index aad6b9bb3e..4a1613504e 100644
--- a/src/Microsoft.Framework.Localization.Abstractions/IStringLocalizer.cs
+++ b/src/Microsoft.Framework.Localization.Abstractions/IStringLocalizer.cs
@@ -9,7 +9,7 @@ namespace Microsoft.Framework.Localization
     /// <summary>
     /// Represents a service that provides localized strings.
     /// </summary>
-    public interface IStringLocalizer : IEnumerable<LocalizedString>
+    public interface IStringLocalizer
     {
         /// <summary>
         /// Gets the string resource with the given name.
@@ -25,7 +25,17 @@ namespace Microsoft.Framework.Localization
         /// <param name="arguments">The values to format the string with.</param>
         /// <returns>The formatted string resource as a <see cref="LocalizedString"/>.</returns>
         LocalizedString this[string name, params object[] arguments] { get; }
-        
+
+        /// <summary>
+        /// Gets all string resources.
+        /// </summary>
+        /// <param name="includeAncestorCultures">
+        /// A <see cref="System.Boolean"/> indicating whether to include
+        /// strings from ancestor cultures.
+        /// </param>
+        /// <returns>The strings.</returns>
+        IEnumerable<LocalizedString> GetAllStrings(bool includeAncestorCultures);
+
         /// <summary>
         /// Creates a new <see cref="ResourceManagerStringLocalizer"/> for a specific <see cref="CultureInfo"/>.
         /// </summary>
diff --git a/src/Microsoft.Framework.Localization.Abstractions/StringLocalizerExtensions.cs b/src/Microsoft.Framework.Localization.Abstractions/StringLocalizerExtensions.cs
index c3cd604ad6..0bd30c124e 100644
--- a/src/Microsoft.Framework.Localization.Abstractions/StringLocalizerExtensions.cs
+++ b/src/Microsoft.Framework.Localization.Abstractions/StringLocalizerExtensions.cs
@@ -1,6 +1,7 @@
 // Copyright (c) .NET Foundation. All rights reserved. 
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. 
 
+using System.Collections.Generic;
 using Microsoft.Framework.Internal;
 
 namespace Microsoft.Framework.Localization
@@ -10,22 +11,31 @@ namespace Microsoft.Framework.Localization
         /// <summary>
         /// Gets the string resource with the given name.
         /// </summary>
+        /// <param name="stringLocalizer">The <see cref="IStringLocalizer"/>.</param>
         /// <param name="name">The name of the string resource.</param>
         /// <returns>The string resource as a <see cref="LocalizedString"/>.</returns>
-        public static LocalizedString GetString([NotNull] this IStringLocalizer stringLocalizer, [NotNull] string name)
-        {
-            return stringLocalizer[name];
-        }
+        public static LocalizedString GetString(
+            [NotNull] this IStringLocalizer stringLocalizer,
+            [NotNull] string name) => stringLocalizer[name];
 
         /// <summary>
         /// Gets the string resource with the given name and formatted with the supplied arguments.
         /// </summary>
+        /// <param name="stringLocalizer">The <see cref="IStringLocalizer"/>.</param>
         /// <param name="name">The name of the string resource.</param>
         /// <param name="arguments">The values to format the string with.</param>
         /// <returns>The formatted string resource as a <see cref="LocalizedString"/>.</returns>
-        public static LocalizedString GetString([NotNull] this IStringLocalizer stringLocalizer, [NotNull] string name, params object[] arguments)
-        {
-            return stringLocalizer[name, arguments];
-        }
+        public static LocalizedString GetString(
+            [NotNull] this IStringLocalizer stringLocalizer,
+            [NotNull] string name,
+            params object[] arguments) => stringLocalizer[name, arguments];
+
+        /// <summary>
+        /// Gets all string resources including those for ancestor cultures.
+        /// </summary>
+        /// <param name="stringLocalizer">The <see cref="IStringLocalizer"/>.</param>
+        /// <returns>The string resources.</returns>
+        public static IEnumerable<LocalizedString> GetAllStrings([NotNull] this IStringLocalizer stringLocalizer) =>
+            stringLocalizer.GetAllStrings(includeAncestorCultures: true);
     }
 }
diff --git a/src/Microsoft.Framework.Localization.Abstractions/StringLocalizerOfT.cs b/src/Microsoft.Framework.Localization.Abstractions/StringLocalizerOfT.cs
index 2a5334cce0..d8621cf516 100644
--- a/src/Microsoft.Framework.Localization.Abstractions/StringLocalizerOfT.cs
+++ b/src/Microsoft.Framework.Localization.Abstractions/StringLocalizerOfT.cs
@@ -1,7 +1,6 @@
 // Copyright (c) .NET Foundation. All rights reserved. 
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. 
 
-using System.Collections;
 using System.Collections.Generic;
 using System.Globalization;
 using Microsoft.Framework.Internal;
@@ -36,15 +35,7 @@ namespace Microsoft.Framework.Localization
             _localizer[name, arguments];
 
         /// <inheritdoc />
-        public virtual LocalizedString GetString([NotNull] string name) => _localizer.GetString(name);
-
-        /// <inheritdoc />
-        public virtual LocalizedString GetString([NotNull] string name, params object[] arguments) =>
-            _localizer.GetString(name, arguments);
-
-        /// <inheritdoc />
-        public IEnumerator<LocalizedString> GetEnumerator() => _localizer.GetEnumerator();
-
-        IEnumerator IEnumerable.GetEnumerator() => _localizer.GetEnumerator();
+        public IEnumerable<LocalizedString> GetAllStrings(bool includeAncestorCultures) =>
+            _localizer.GetAllStrings(includeAncestorCultures);
     }
 }
\ No newline at end of file
diff --git a/src/Microsoft.Framework.Localization/ResourceManagerStringLocalizer.cs b/src/Microsoft.Framework.Localization/ResourceManagerStringLocalizer.cs
index ee62f3db03..b970d5a4d4 100644
--- a/src/Microsoft.Framework.Localization/ResourceManagerStringLocalizer.cs
+++ b/src/Microsoft.Framework.Localization/ResourceManagerStringLocalizer.cs
@@ -100,6 +100,29 @@ namespace Microsoft.Framework.Localization
                     culture);
         }
 
+        /// <inheritdoc />
+        public virtual IEnumerable<LocalizedString> GetAllStrings(bool includeAncestorCultures) =>
+            GetAllStrings(includeAncestorCultures, CultureInfo.CurrentUICulture);
+
+        /// <summary>
+        /// Returns all strings in the specified culture.
+        /// </summary>
+        /// <param name="includeAncestorCultures"></param>
+        /// <param name="culture">The <see cref="CultureInfo"/> to get strings for.</param>
+        /// <returns>The strings.</returns>
+        protected IEnumerable<LocalizedString> GetAllStrings(bool includeAncestorCultures, [NotNull] CultureInfo culture)
+        {
+            var resourceNames = includeAncestorCultures
+                ? GetResourceNamesFromCultureHierarchy(culture)
+                : GetResourceNamesForCulture(culture);
+
+            foreach (var name in resourceNames)
+            {
+                var value = GetStringSafely(name, culture);
+                yield return new LocalizedString(name, value ?? name, resourceNotFound: value == null);
+            }
+        }
+
         /// <summary>
         /// Gets a resource string from the <see cref="_resourceManager"/> and returns <c>null</c> instead of
         /// throwing exceptions if a match isn't found.
@@ -127,30 +150,6 @@ namespace Microsoft.Framework.Localization
             }
         }
 
-        /// <summary>
-        /// Returns an <see cref="IEnumerator{LocalizedString}"/> for all strings in the current culture.
-        /// </summary>
-        /// <returns>The <see cref="IEnumerator{LocalizedString}"/>.</returns>
-        public virtual IEnumerator<LocalizedString> GetEnumerator() => GetEnumerator(CultureInfo.CurrentUICulture);
-
-        IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
-
-        /// <summary>
-        /// Returns an <see cref="IEnumerator{LocalizedString}"/> for all strings in the specified culture.
-        /// </summary>
-        /// <param name="culture">The <see cref="CultureInfo"/> to get strings for.</param>
-        /// <returns>The <see cref="IEnumerator{LocalizedString}"/>.</returns>
-        protected IEnumerator<LocalizedString> GetEnumerator([NotNull] CultureInfo culture)
-        {
-            var resourceNames = GetResourceNamesFromCultureHierarchy(culture);
-
-            foreach (var name in resourceNames)
-            {
-                var value = GetStringSafely(name, culture);
-                yield return new LocalizedString(name, value ?? name, resourceNotFound: value == null);
-            }
-        }
-
         private IEnumerable<string> GetResourceNamesFromCultureHierarchy(CultureInfo startingCulture)
         {
             var currentCulture = startingCulture;
@@ -191,10 +190,10 @@ namespace Microsoft.Framework.Localization
 
             var cacheKey = $"assembly={_resourceAssemblyWrapper.FullName};resourceStreamName={resourceStreamName}";
 
-            var cultureResourceNames = _resourceNamesCache.GetOrAdd(cacheKey, key =>
+            var cultureResourceNames = _resourceNamesCache.GetOrAdd(cacheKey, _ =>
             {
                 var names = new List<string>();
-                using (var cultureResourceStream = _resourceAssemblyWrapper.GetManifestResourceStream(key))
+                using (var cultureResourceStream = _resourceAssemblyWrapper.GetManifestResourceStream(resourceStreamName))
                 using (var resources = new ResourceReader(cultureResourceStream))
                 {
                     foreach (DictionaryEntry entry in resources)
diff --git a/src/Microsoft.Framework.Localization/ResourceManagerWithCultureStringLocalizer.cs b/src/Microsoft.Framework.Localization/ResourceManagerWithCultureStringLocalizer.cs
index bc79cf838b..03f0135b54 100644
--- a/src/Microsoft.Framework.Localization/ResourceManagerWithCultureStringLocalizer.cs
+++ b/src/Microsoft.Framework.Localization/ResourceManagerWithCultureStringLocalizer.cs
@@ -58,6 +58,7 @@ namespace Microsoft.Framework.Localization
         }
 
         /// <inheritdoc />
-        public override IEnumerator<LocalizedString> GetEnumerator() => GetEnumerator(_culture);
+        public override IEnumerable<LocalizedString> GetAllStrings(bool includeAncestorCultures) =>
+            GetAllStrings(includeAncestorCultures, _culture);
     }
 }
\ No newline at end of file
diff --git a/test/Microsoft.Framework.Localization.Test/ResourceManagerStringLocalizerTest.cs b/test/Microsoft.Framework.Localization.Test/ResourceManagerStringLocalizerTest.cs
index 92191c0bf8..0bb208bdf8 100644
--- a/test/Microsoft.Framework.Localization.Test/ResourceManagerStringLocalizerTest.cs
+++ b/test/Microsoft.Framework.Localization.Test/ResourceManagerStringLocalizerTest.cs
@@ -27,8 +27,8 @@ namespace Microsoft.Framework.Localization.Test
             // Act
             for (int i = 0; i < 5; i++)
             {
-                localizer1.ToList();
-                localizer2.ToList();
+                localizer1.GetAllStrings().ToList();
+                localizer2.GetAllStrings().ToList();
             }
 
             // Assert
@@ -50,8 +50,8 @@ namespace Microsoft.Framework.Localization.Test
             var localizer2 = new ResourceManagerStringLocalizer(resourceManager2, resourceAssembly2, baseName, resourceNamesCache);
 
             // Act
-            localizer1.ToList();
-            localizer2.ToList();
+            localizer1.GetAllStrings().ToList();
+            localizer2.GetAllStrings().ToList();
 
             // Assert
             var expectedCallCount = GetCultureInfoDepth(CultureInfo.CurrentUICulture);