diff --git a/Reference.md b/Reference.md
index 0b5d89b8..c70f46c9 100644
--- a/Reference.md
+++ b/Reference.md
@@ -76,7 +76,7 @@
 
 /orgs/:org/members/:user
 ========================
- - GET: `` (TODO SOON)
+ - GET: `Organization.has_in_members( user )`: `bool`
  - DELETE: `Organization.remove_from_members( user )`
 
 /orgs/:org/public_members
@@ -85,7 +85,7 @@
 
 /orgs/:org/public_members/:user
 ===============================
- - GET: `` (TODO SOON)
+ - GET: `Organization.has_in_public_members( user )`: `bool`
  - PUT: `Organization.add_to_public_members( user )`
  - DELETE: `Organization.remove_from_public_members( user )`
 
@@ -114,7 +114,7 @@
 
 /repos/:user/:repo/collaborators/:user
 ======================================
- - GET: `` (TODO SOON)
+ - GET: `Repository.has_in_collaborators( user )`: `bool`
  - PUT: `Repository.add_to_collaborators( user )`
  - DELETE: `Repository.remove_from_collaborators( user )`
 
@@ -407,7 +407,7 @@
 
 /user/following/:user
 =====================
- - GET: `` (TODO SOON)
+ - GET: `AuthenticatedUser.has_in_following( user )`: `bool`
  - PUT: `AuthenticatedUser.add_to_following( user )`
  - DELETE: `AuthenticatedUser.remove_from_following( user )`
 
@@ -437,7 +437,7 @@
 
 /user/watched/:user/:repo
 =========================
- - GET: `` (TODO SOON)
+ - GET: `AuthenticatedUser.has_in_watched( repo )`: `bool`
  - PUT: `AuthenticatedUser.add_to_watched( repo )`
  - DELETE: `AuthenticatedUser.remove_from_watched( repo )`
 
diff --git a/github/GithubObjects.py b/github/GithubObjects.py
index a8bc64f3..e54ffd56 100644
--- a/github/GithubObjects.py
+++ b/github/GithubObjects.py
@@ -31,7 +31,7 @@ NamedUser = GithubObject(
 AuthenticatedUser._addAttributePolicy( ExtendedListAttribute( "followers", NamedUser ) )
 NamedUser._addAttributePolicy( ExtendedListAttribute( "followers", NamedUser ) )
 
-AuthenticatedUser._addAttributePolicy( ExtendedListAttribute( "following", NamedUser, True, True ) )
+AuthenticatedUser._addAttributePolicy( ExtendedListAttribute( "following", NamedUser, addable = True, removable = True, hasable = True ) )
 NamedUser._addAttributePolicy( ExtendedListAttribute( "following", NamedUser ) )
 
 Organization = GithubObject(
@@ -46,8 +46,8 @@ Organization = GithubObject(
         "disk_usage", "collaborators", "billing_email", "plan", "private_gists",
         "total_private_repos", "owned_private_repos",
     ),
-    ExtendedListAttribute( "public_members", NamedUser, True, True ),
-    ExtendedListAttribute( "members", NamedUser, removable = True ),
+    ExtendedListAttribute( "public_members", NamedUser, addable = True, removable = True, hasable = True ),
+    ExtendedListAttribute( "members", NamedUser, removable = True, hasable = True ),
     Editable( [], [ "billing_email", "blog", "company", "email", "location", "name" ] ),
 )
 
@@ -68,7 +68,7 @@ Repository = GithubObject(
         "mirror_url", "updated_at", "id",
     ),
     ExtendedScalarAttribute( "owner", NamedUser ),
-    ExtendedListAttribute( "collaborators", NamedUser, True, True ),
+    ExtendedListAttribute( "collaborators", NamedUser, addable = True, removable = True, hasable = True ),
     ExtendedListAttribute( "contributors", NamedUser ),
     ExtendedListAttribute( "watchers", NamedUser ),
     Editable( [ "name" ], [ "description", "homepage", "public", "has_issues", "has_wiki", "has_downloads" ] ),
@@ -81,5 +81,5 @@ AuthenticatedUser._addAttributePolicy( ExtendedListAttribute( "repos", Repositor
 NamedUser._addAttributePolicy( ExtendedListAttribute( "repos", Repository ) )
 Organization._addAttributePolicy( ExtendedListAttribute( "repos", Repository ) )
 
-AuthenticatedUser._addAttributePolicy( ExtendedListAttribute( "watched", Repository, True, True ) )
+AuthenticatedUser._addAttributePolicy( ExtendedListAttribute( "watched", Repository, addable = True, removable = True, hasable = True ) )
 NamedUser._addAttributePolicy( ExtendedListAttribute( "watched", Repository ) )