diff --git a/examples/geo/App.jsx b/examples/geo/App.jsx
index 5d808a3..7486afa 100644
--- a/examples/geo/App.jsx
+++ b/examples/geo/App.jsx
@@ -5,6 +5,7 @@ import autocompleteStyles from './styles/autocomplete.module.css'
 import defaultListbox from '../_shared/defaultListbox'
 import ItemContents from './components/itemContents/itemContents'
 import GroupName from './components/groupName/groupName'
+import undef from '../../src/lib/utils/undef'
 
 const maxItems = 10
 const placeholder = 'Enter a city or airport'
@@ -34,9 +35,14 @@ const listbox = [
 ]
 
 const App = () => {
-  const [selected, setSelected] = useState()
+  const [selected, setSelected] = useState({item: undef, displayField: undef})
 
-  const onSelect = sel => setSelected(sel)
+  const onSelect = useCallback(
+    (item, displayField) => {
+      console.log({item, displayField})
+      setSelected({item, displayField})
+    }, []
+  )
 
   const onEnter = useCallback(
     (query, selectedResult) => {
@@ -78,11 +84,11 @@ const App = () => {
           />
         </div>
       </main>
-      {selected && (
+      {!!selected.item && (
         <div className={styles.selected}>
           <strong>Selected Result</strong><br />
-          {selected.name}<br />
-          Coords: {selected.coords}
+          {selected.item[selected.displayField]}<br />
+          Coords: {selected.item.coords}
         </div>
       )}
     </div>
diff --git a/src/lib/components/hooks/containerEffects.js b/src/lib/components/hooks/containerEffects.js
index bea01b5..ed7c672 100644
--- a/src/lib/components/hooks/containerEffects.js
+++ b/src/lib/components/hooks/containerEffects.js
@@ -63,18 +63,20 @@ export const useHighlight = (highlighted, hasFocus, queryInput, typeaheadInput)
 
 export const useSelected = (selected, queryInput, typeaheadInput, onSelect) => {
   useEffect(() => {
-    let callbackValue
+    let value, displayField
 
     if (isUndefined(selected)) {
-      callbackValue = undef
+      value = undef
+      displayField = undef
     }
     else {
       typeaheadInput.current.value = ''
       queryInput.current.blur()
-      callbackValue = selected.value
+      value = selected.value
+      displayField = selected.displayField
     }
 
-    if (typeof onSelect === 'function') onSelect(callbackValue)
+    if (typeof onSelect === 'function') onSelect(value, displayField)
   }, [selected, onSelect])
 }
 
diff --git a/src/lib/components/hooks/containerEffects.test.js b/src/lib/components/hooks/containerEffects.test.js
index 31b120c..e36c561 100644
--- a/src/lib/components/hooks/containerEffects.test.js
+++ b/src/lib/components/hooks/containerEffects.test.js
@@ -132,7 +132,8 @@ describe('useSelected', () => {
     value: {
       name: queryValue,
       coords: '41.882304590139135, -87.62327214400634'
-    }
+    },
+    displayField: 'name'
   }
 
   test('Side effects of item selection occur correctly', () => {
@@ -143,7 +144,7 @@ describe('useSelected', () => {
     expect(queryRef.current.value).toBe(queryValue)
     expect(queryRef.current.blur).toHaveBeenCalledTimes(1)
     expect(typeaheadRef.current.value).toBe('')
-    expect(onSelect).toHaveBeenCalledWith(selected.value)
+    expect(onSelect).toHaveBeenCalledWith(selected.value, selected.displayField)
   })
 
   test('Side effects do not occur if selected item is undefined', () => {
@@ -153,7 +154,7 @@ describe('useSelected', () => {
     renderHook(() => useSelected(undef, queryRef, typeaheadRef, onSelect))
     expect(queryRef.current.blur).toHaveBeenCalledTimes(0)
     expect(typeaheadRef.current.value).toBe(queryValue)
-    expect(onSelect).toHaveBeenCalledWith(undef)
+    expect(onSelect).toHaveBeenCalledWith(undef, undef)
   })
 })
 
diff --git a/src/lib/components/hooks/useData.js b/src/lib/components/hooks/useData.js
index dc0b3b3..91153e2 100644
--- a/src/lib/components/hooks/useData.js
+++ b/src/lib/components/hooks/useData.js
@@ -103,6 +103,7 @@ export const fetcher = (query, listbox, defaultListbox, minQueryLength, maxItems
           groupId: listboxProp[groupIndex].id,
           groupName: listboxProp[groupIndex].name,
           searchType: listboxProp[groupIndex].searchType,
+          displayField: listboxProp[groupIndex].displayField,
           defaultListbox: isDefaultListbox
         }))
       ]
diff --git a/src/lib/components/hooks/useData.test.js b/src/lib/components/hooks/useData.test.js
index 6030d02..089235e 100644
--- a/src/lib/components/hooks/useData.test.js
+++ b/src/lib/components/hooks/useData.test.js
@@ -29,6 +29,7 @@ const server = setupServer(
 
 const apiListbox = [
   {
+    id: 'books',
     name: 'Books',
     ratio: 4,
     displayField: 'title',
@@ -61,25 +62,41 @@ describe('Fetching API data', () => {
           value: { title: 'Last Argument of Kings', author: 'Joe Abercrombie' },
           text: 'Last Argument of Kings',
           groupIndex: 0,
-          groupName: 'Books'
+          groupName: 'Books',
+          defaultListbox: undef,
+          displayField: 'title',
+          groupId: 'books',
+          searchType: undef
         },
         {
           value: { title: 'Legend', author: 'Marie Lu' },
           text: 'Legend',
           groupIndex: 0,
-          groupName: 'Books'
+          groupName: 'Books',
+          defaultListbox: undef,
+          displayField: 'title',
+          groupId: 'books',
+          searchType: undef
         },
         {
           value: { title: 'Life After Life', author: 'Kate Atkinson' },
           text: 'Life After Life',
           groupIndex: 0,
-          groupName: 'Books'
+          groupName: 'Books',
+          defaultListbox: undef,
+          displayField: 'title',
+          groupId: 'books',
+          searchType: undef
         },
         {
           value: { title: 'Like Water for Chocolate', author: 'Laura Esquivel' },
           text: 'Like Water for Chocolate',
           groupIndex: 0,
-          groupName: 'Books'
+          groupName: 'Books',
+          defaultListbox: undef,
+          displayField: 'title',
+          groupId: 'books',
+          searchType: undef
         },
         {
           value: 'Legume',
diff --git a/src/lib/index.jsx b/src/lib/index.jsx
index 5e050c5..2fa23ac 100644
--- a/src/lib/index.jsx
+++ b/src/lib/index.jsx
@@ -48,7 +48,7 @@ const listboxRules = PropTypes.oneOfType([
       PropTypes.array
     ]).isRequired,
     searchType: PropTypes.oneOf(searchTypes),
-    displayField: PropTypes.string,
+    displayField: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),
     id: PropTypes.string,
     name: PropTypes.string.isRequired,
     ratio: PropTypes.number
@@ -59,7 +59,7 @@ const listboxRules = PropTypes.oneOfType([
       PropTypes.array
     ]).isRequired,
     searchType: PropTypes.oneOf(searchTypes),
-    displayField: PropTypes.string
+    displayField: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),
   })
 ])
 
@@ -72,7 +72,6 @@ Turnstone.propTypes = {
   defaultListbox: listboxRules,
   defaultListboxIsImmutable: PropTypes.bool,
   disabled: PropTypes.bool,
-  displayField: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),
   errorMessage: PropTypes.string,
   id: PropTypes.string,
   listbox: listboxRules.isRequired,