diff --git a/docs/designers-developers/developers/data/data-core.md b/docs/designers-developers/developers/data/data-core.md
index 6484e914f2eefe..37c4ad7d5f8584 100644
--- a/docs/designers-developers/developers/data/data-core.md
+++ b/docs/designers-developers/developers/data/data-core.md
@@ -34,6 +34,7 @@ Returns all available authors.
 _Parameters_
 
 -   _state_ `Object`: Data state.
+-   _query_ `(Object|undefined)`: Optional object of query parameters to include with request.
 
 _Returns_
 
diff --git a/packages/core-data/README.md b/packages/core-data/README.md
index fdb7e87043ac20..bc887ad571c7cd 100644
--- a/packages/core-data/README.md
+++ b/packages/core-data/README.md
@@ -271,6 +271,7 @@ Returns all available authors.
 _Parameters_
 
 -   _state_ `Object`: Data state.
+-   _query_ `(Object|undefined)`: Optional object of query parameters to include with request.
 
 _Returns_
 
diff --git a/packages/core-data/src/resolvers.js b/packages/core-data/src/resolvers.js
index 69e452142554e8..e84acb00f7ea8d 100644
--- a/packages/core-data/src/resolvers.js
+++ b/packages/core-data/src/resolvers.js
@@ -28,12 +28,28 @@ import { ifNotResolved, getNormalizedCommaSeparable } from './utils';
 
 /**
  * Requests authors from the REST API.
+ *
+ * @param {Object|undefined} query Optional object of query parameters to
+ *                                 include with request.
  */
-export function* getAuthors() {
-	const users = yield apiFetch( {
-		path: '/wp/v2/users/?who=authors&per_page=-1',
-	} );
-	yield receiveUserQuery( 'authors', users );
+export function* getAuthors( query ) {
+	const path = addQueryArgs(
+		'/wp/v2/users/?who=authors&per_page=100',
+		query
+	);
+	const users = yield apiFetch( { path } );
+	yield receiveUserQuery( path, users );
+}
+
+/**
+ * Temporary approach to resolving editor access to author queries.
+ *
+ * @param {number} id The author id.
+ */
+export function* __unstableGetAuthor( id ) {
+	const path = `/wp/v2/users?who=authors&include=${ id }`;
+	const users = yield apiFetch( { path } );
+	yield receiveUserQuery( 'author', users );
 }
 
 /**
diff --git a/packages/core-data/src/selectors.js b/packages/core-data/src/selectors.js
index 429fbab424fec2..154337ff10fcb0 100644
--- a/packages/core-data/src/selectors.js
+++ b/packages/core-data/src/selectors.js
@@ -9,6 +9,7 @@ import { set, map, find, get, filter, compact, defaultTo } from 'lodash';
  */
 import { createRegistrySelector } from '@wordpress/data';
 import deprecated from '@wordpress/deprecated';
+import { addQueryArgs } from '@wordpress/url';
 
 /**
  * Internal dependencies
@@ -37,18 +38,32 @@ export const isRequestingEmbedPreview = createRegistrySelector(
 	}
 );
 
+/**
+ * Returns all available authors.
+ *
+ * @param {Object}           state Data state.
+ * @param {Object|undefined} query Optional object of query parameters to
+ *                                 include with request.
+ * @return {Array} Authors list.
+ */
+export function getAuthors( state, query ) {
+	const path = addQueryArgs(
+		'/wp/v2/users/?who=authors&per_page=100',
+		query
+	);
+	return getUserQueryResults( state, path );
+}
+
 /**
  * Returns all available authors.
  *
  * @param {Object} state Data state.
+ * @param {number} id The author id.
  *
  * @return {Array} Authors list.
  */
-export function getAuthors( state ) {
-	deprecated( "select( 'core' ).getAuthors()", {
-		alternative: "select( 'core' ).getUsers({ who: 'authors' })",
-	} );
-	return getUserQueryResults( state, 'authors' );
+export function __unstableGetAuthor( state, id ) {
+	return get( state, [ 'users', 'byId', id ], null );
 }
 
 /**
diff --git a/packages/editor/src/components/post-author/check.js b/packages/editor/src/components/post-author/check.js
index 8ee69ff4826c99..1826da16a76ef8 100644
--- a/packages/editor/src/components/post-author/check.js
+++ b/packages/editor/src/components/post-author/check.js
@@ -19,7 +19,7 @@ export function PostAuthorCheck( {
 	authors,
 	children,
 } ) {
-	if ( ! hasAssignAuthorAction || ! authors || authors.length < 2 ) {
+	if ( ! hasAssignAuthorAction || ! authors || 1 >= authors.length ) {
 		return null;
 	}
 
@@ -40,7 +40,7 @@ export default compose( [
 				false
 			),
 			postType: select( 'core/editor' ).getCurrentPostType(),
-			authors: select( 'core' ).getUsers( { who: 'authors' } ),
+			authors: select( 'core' ).getAuthors(),
 		};
 	} ),
 	withInstanceId,
diff --git a/packages/editor/src/components/post-author/index.js b/packages/editor/src/components/post-author/index.js
index 889f5dcf0c74e0..ea0e8909ab2fd5 100644
--- a/packages/editor/src/components/post-author/index.js
+++ b/packages/editor/src/components/post-author/index.js
@@ -21,18 +21,20 @@ function PostAuthor() {
 
 	const { authorId, isLoading, authors, postAuthor } = useSelect(
 		( select ) => {
-			const { getUser, getUsers, isResolving } = select( 'core' );
+			const { __unstableGetAuthor, getAuthors, isResolving } = select(
+				'core'
+			);
 			const { getEditedPostAttribute } = select( 'core/editor' );
-			const author = getUser( getEditedPostAttribute( 'author' ) );
+			const author = __unstableGetAuthor(
+				getEditedPostAttribute( 'author' )
+			);
 			const query =
 				! fieldValue || '' === fieldValue ? {} : { search: fieldValue };
 			return {
 				authorId: getEditedPostAttribute( 'author' ),
 				postAuthor: author,
-				authors: getUsers( { who: 'authors', ...query } ),
-				isLoading: isResolving( 'core', 'getUsers', [
-					{ search: fieldValue, who: 'authors' },
-				] ),
+				authors: getAuthors( query ),
+				isLoading: isResolving( 'core', 'getAuthors', [ query ] ),
 			};
 		},
 		[ fieldValue ]