diff --git a/Octokit/Models/Common/AuthorAssociation.cs b/Octokit/Models/Common/AuthorAssociation.cs
new file mode 100644
index 00000000..2661c6d4
--- /dev/null
+++ b/Octokit/Models/Common/AuthorAssociation.cs
@@ -0,0 +1,52 @@
+using Octokit.Internal;
+
+namespace Octokit
+{
+    /// <summary>
+    /// States of a Team/Organization Membership
+    /// </summary>
+    public enum AuthorAssociation
+    {
+        /// <summary>
+        /// Author has been invited to collaborate on the repository.
+        /// </summary>
+        [Parameter(Value = "COLLABORATOR")]
+        Collaborator,
+
+        /// <summary>
+        /// Author has previously committed to the repository.
+        /// </summary>
+        [Parameter(Value = "CONTRIBUTOR")]
+        Contributor,
+
+        /// <summary>
+        /// Author has not previously committed to GitHub.
+        /// </summary>
+        [Parameter(Value = "FIRST_TIMER")]
+        FirstTimer,
+
+        /// <summary>
+        /// Author has not previously committed to the repository.
+        /// </summary>
+        [Parameter(Value = "FIRST_TIME_CONTRIBUTOR")]
+        FirstTimeContributor,
+
+        /// <summary>
+        /// Author is a member of the organization that owns the repository.
+        /// </summary>
+        [Parameter(Value = "MEMBER")]
+        Member,
+
+        /// <summary>
+        /// Author is the owner of the repository. 
+        /// </summary>
+        [Parameter(Value = "OWNER")]
+        Owner,
+
+        /// <summary>
+        /// Author has no association with the repository.
+        /// </summary>
+        [Parameter(Value = "NONE")]
+        None
+    }
+}
diff --git a/Octokit/Models/Response/IssueComment.cs b/Octokit/Models/Response/IssueComment.cs
index 989fe65e..9ef576f8 100644
--- a/Octokit/Models/Response/IssueComment.cs
+++ b/Octokit/Models/Response/IssueComment.cs
@@ -10,7 +10,7 @@ namespace Octokit
     {
         public IssueComment() { }
 
-        public IssueComment(int id, string nodeId, string url, string htmlUrl, string body, DateTimeOffset createdAt, DateTimeOffset? updatedAt, User user, ReactionSummary reactions)
+        public IssueComment(int id, string nodeId, string url, string htmlUrl, string body, DateTimeOffset createdAt, DateTimeOffset? updatedAt, User user, ReactionSummary reactions, AuthorAssociation authorAssociation)
         {
             Id = id;
             NodeId = nodeId;
@@ -21,6 +21,7 @@ namespace Octokit
             UpdatedAt = updatedAt;
             User = user;
             Reactions = reactions;
+            AuthorAssociation = authorAssociation;
         }
 
         /// <summary>
@@ -63,6 +64,11 @@ namespace Octokit
         /// </summary>
         public User User { get; protected set; }
 
+        /// <summary>
+        /// The comment author association with repository.
+        /// </summary>
+        public StringEnum<AuthorAssociation> AuthorAssociation { get; protected set; }
+
         /// <summary>
         /// The reaction summary for this comment.
         /// </summary>
diff --git a/Octokit/Models/Response/PullRequestReview.cs b/Octokit/Models/Response/PullRequestReview.cs
index e6e1d33c..4334b2a2 100644
--- a/Octokit/Models/Response/PullRequestReview.cs
+++ b/Octokit/Models/Response/PullRequestReview.cs
@@ -15,7 +15,7 @@ namespace Octokit
             Id = id;
         }
 
-        public PullRequestReview(long id, string nodeId, string commitId, User user, string body, string htmlUrl, string pullRequestUrl, PullRequestReviewState state)
+        public PullRequestReview(long id, string nodeId, string commitId, User user, string body, string htmlUrl, string pullRequestUrl, PullRequestReviewState state, AuthorAssociation authorAssociation)
         {
             Id = id;
             NodeId = nodeId;
@@ -25,6 +25,7 @@ namespace Octokit
             HtmlUrl = htmlUrl;
             PullRequestUrl = pullRequestUrl;
             State = state;
+            AuthorAssociation = authorAssociation;
         }
 
         /// <summary>
@@ -67,6 +68,11 @@ namespace Octokit
         /// </summary>
         public string PullRequestUrl { get; protected set; }
 
+        /// <summary>
+        /// The comment author association with repository.
+        /// </summary>
+        public StringEnum<AuthorAssociation> AuthorAssociation { get; protected set; }
+
         internal string DebuggerDisplay
         {
             get { return string.Format(CultureInfo.InvariantCulture, "Id: {0}, State: {1}, User: {2}", Id, State.DebuggerDisplay, User.DebuggerDisplay); }
diff --git a/Octokit/Models/Response/PullRequestReviewComment.cs b/Octokit/Models/Response/PullRequestReviewComment.cs
index d6a71d42..6f2a9673 100644
--- a/Octokit/Models/Response/PullRequestReviewComment.cs
+++ b/Octokit/Models/Response/PullRequestReviewComment.cs
@@ -15,7 +15,7 @@ namespace Octokit
             Id = id;
         }
 
-        public PullRequestReviewComment(string url, int id, string nodeId, string diffHunk, string path, int? position, int? originalPosition, string commitId, string originalCommitId, User user, string body, DateTimeOffset createdAt, DateTimeOffset updatedAt, string htmlUrl, string pullRequestUrl, ReactionSummary reactions, int? inReplyToId, int? pullRequestReviewId)
+        public PullRequestReviewComment(string url, int id, string nodeId, string diffHunk, string path, int? position, int? originalPosition, string commitId, string originalCommitId, User user, string body, DateTimeOffset createdAt, DateTimeOffset updatedAt, string htmlUrl, string pullRequestUrl, ReactionSummary reactions, int? inReplyToId, int? pullRequestReviewId, AuthorAssociation authorAssociation)
         {
             PullRequestReviewId = pullRequestReviewId;
             Url = url;
@@ -35,6 +35,7 @@ namespace Octokit
             PullRequestUrl = pullRequestUrl;
             Reactions = reactions;
             InReplyToId = inReplyToId;
+            AuthorAssociation = authorAssociation;
         }
 
         /// <summary>
@@ -127,6 +128,11 @@ namespace Octokit
         /// </summary>
         public int? PullRequestReviewId { get; protected set; }
 
+        /// <summary>
+        /// The comment author association with repository.
+        /// </summary>
+        public StringEnum<AuthorAssociation> AuthorAssociation { get; protected set; }
+
         internal string DebuggerDisplay
         {
             get { return string.Format(CultureInfo.InvariantCulture, "Id: {0}, Path: {1}, User: {2}, Url: {3}", Id, Path, User.DebuggerDisplay, Url); }