diff --git a/BeckmanComms.Api.DataTransferObjects/BeckmanComms.Api.DataTransferObjects.csproj b/BeckmanComms.Api.DataTransferObjects/BeckmanComms.Api.DataTransferObjects.csproj
index 2d602dd40a0aafaca3b3724b785081e54a7e5b8b..f1d837fce21a15d35faf5bd34c860dfac36e4a63 100644
--- a/BeckmanComms.Api.DataTransferObjects/BeckmanComms.Api.DataTransferObjects.csproj
+++ b/BeckmanComms.Api.DataTransferObjects/BeckmanComms.Api.DataTransferObjects.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <TargetFrameworks>net45;netstandard2.0</TargetFrameworks>
-    <Version>2.1.1</Version>
+    <Version>2.3.0</Version>
     <Authors>areynold</Authors>
     <Company>Beckman Institute for Advanced Science &amp; Technology; University of Illinois at Urbana-Champaign</Company>
     <Copyright>Copyright 2018, University of Illinois Board of Trustees</Copyright>
@@ -11,7 +11,11 @@
     <RepositoryUrl>https://gitlab.engr.illinois.edu/beckmancomms/beckmancomms-api-datatransferobjects.git</RepositoryUrl>
     <RepositoryType>git</RepositoryType>
     <PackageTags>mvc, dto, api, beckman, uiuc, illinois</PackageTags>
-    <PackageReleaseNotes>2.1.1:     
+    <PackageReleaseNotes>2.3:     
+    *  Added primary group to person entry.
+2.2:     
+     * Added group parent abbreviation to group types objects.
+     2.1.1:     
       * Fixed name of priority attribute.
       2.1.0:
       * Added a priority to the PersonDto object needed to sort items in the new directory pages.
@@ -81,11 +85,11 @@
       * Package initial v1, v2 data transfer objects.
 </PackageReleaseNotes>
     <NeutralLanguage>en-US</NeutralLanguage>
-    <AssemblyVersion>2.1.1.0</AssemblyVersion>
+    <AssemblyVersion>2.3.0.0</AssemblyVersion>
     <PackageLicenseUrl>https://gitlab.engr.illinois.edu/beckmancomms/beckmancomms-api-datatransferobjects/blob/master/License.md</PackageLicenseUrl>
     <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
-    <FileVersion>2.1.1.0</FileVersion>
+    <FileVersion>2.3.0.0</FileVersion>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(TargetFramework)|$(Platform)'=='Debug|netstandard1.4|AnyCPU'">
diff --git a/BeckmanComms.Api.DataTransferObjects/V2/Directory/GroupDto.cs b/BeckmanComms.Api.DataTransferObjects/V2/Directory/GroupDto.cs
index a691755393c2c91927197091f6ce35dc9cafdd0f..16aa9525b977897af50da5b96b28874642d0c6b3 100644
--- a/BeckmanComms.Api.DataTransferObjects/V2/Directory/GroupDto.cs
+++ b/BeckmanComms.Api.DataTransferObjects/V2/Directory/GroupDto.cs
@@ -17,6 +17,11 @@ namespace BeckmanComms.Api.DataTransferObjects.V2.Directory
         /// </summary>
         public string Abbreviation { get; set; }
 
+        /// <summary>
+        /// Parent group abbreviation.
+        /// </summary>
+        public string ParentAbbreviation { get; set; }
+
         /// <summary>
         /// Internal group category designation (e.g., Administrative).
         /// </summary>
diff --git a/BeckmanComms.Api.DataTransferObjects/V2/Directory/PersonDto.cs b/BeckmanComms.Api.DataTransferObjects/V2/Directory/PersonDto.cs
index 3c0bd9ac5edb9c1314853ab3f3a58c26de0ca31e..fe4d33896a6350d09146cd6aa3421c052c65bcb0 100644
--- a/BeckmanComms.Api.DataTransferObjects/V2/Directory/PersonDto.cs
+++ b/BeckmanComms.Api.DataTransferObjects/V2/Directory/PersonDto.cs
@@ -32,6 +32,11 @@ namespace BeckmanComms.Api.DataTransferObjects.V2.Directory
         /// </summary>
         public string EmailAddress { get; set; }
 
+        /// <summary>
+        /// Staff member's primary group abbreviation.
+        /// </summary>
+        public string PrimaryGroupAbbreviation { get; set; }
+
         /// <summary>
         /// Staff member's title.
         /// </summary>