diff --git a/static-site/src/components/ListResources/index.tsx b/static-site/src/components/ListResources/index.tsx
index 5632abdca..10a2765b7 100644
--- a/static-site/src/components/ListResources/index.tsx
+++ b/static-site/src/components/ListResources/index.tsx
@@ -12,7 +12,7 @@ import { ErrorContainer } from "../../pages/404";
 import { TooltipWrapper } from "./IndividualResource";
 import {ResourceModal, SetModalResourceContext} from "./Modal";
 import { CardImgWrapper, CardInner, CardOuter, CardTitle, Showcase } from "../Showcase";
-import { FilterCard, FilterOption, Group, GroupDisplayNames, QuickLink, Resource, ResourceListingInfo } from './types';
+import { FilterCard, FilterOption, Group, QuickLink, Resource, ResourceListingInfo } from './types';
 import { HugeSpacer } from "../../layouts/generalComponents";
 
 interface ListResourcesProps extends ListResourcesResponsiveProps {
@@ -128,7 +128,9 @@ interface ListResourcesResponsiveProps {
 
   /** Should the group name itself be a url? (which we let the server redirect) */
   defaultGroupLinks: boolean
-  groupDisplayNames: GroupDisplayNames
+
+  /** Mapping from group name -> display name */
+  groupDisplayNames: Record<string, string>
   showcase: FilterCard[]
   resourceListingCallback: () => Promise<ResourceListingInfo>;
 }
@@ -255,13 +257,7 @@ const Byline = styled.div`
 
 /*** SHOWCASE ***/
 
-
-interface FilterShowcaseTileProps {
-  card: FilterCard
-}
-
-
-const FilterShowcaseTile = ({ card }: FilterShowcaseTileProps) => {
+const FilterShowcaseTile = ({ card }: { card: FilterCard }) => {
   const setSelectedFilterOptions = useContext(SetSelectedFilterOptions);
 
   if (!setSelectedFilterOptions) {
diff --git a/static-site/src/components/ListResources/types.ts b/static-site/src/components/ListResources/types.ts
index 5f0e1cbdc..0b933fab1 100644
--- a/static-site/src/components/ListResources/types.ts
+++ b/static-site/src/components/ListResources/types.ts
@@ -36,14 +36,7 @@ export interface ResourceDisplayName {
 
 export interface ResourceListingInfo {
   pathPrefix: string
-  pathVersions: PathVersions
-}
-
-/**
- * Mapping from group name -> display name
- */
-export interface GroupDisplayNames {
-  [name: string]: string
+  pathVersions: Record<string, string[]>
 }
 
 export interface UpdateCadence {
@@ -62,7 +55,3 @@ export interface QuickLink {
   display: string
   groupName?: string
 }
-
-export interface PathVersions {
-  [name: string]: string[]  // versions
-}
diff --git a/static-site/src/components/ListResources/useDataFetch.ts b/static-site/src/components/ListResources/useDataFetch.ts
index b5eccdfb3..d8c0e7bb2 100644
--- a/static-site/src/components/ListResources/useDataFetch.ts
+++ b/static-site/src/components/ListResources/useDataFetch.ts
@@ -1,5 +1,5 @@
 import { useState, useEffect } from 'react';
-import { Group, GroupDisplayNames, PathVersions, Resource, ResourceListingInfo } from './types';
+import { Group, Resource, ResourceListingInfo } from './types';
 
 
 /**
@@ -21,7 +21,7 @@ import { Group, GroupDisplayNames, PathVersions, Resource, ResourceListingInfo }
 export function useDataFetch(
   versioned: boolean,
   defaultGroupLinks: boolean,
-  groupDisplayNames: GroupDisplayNames,
+  groupDisplayNames: Record<string, string>,
   resourceListingCallback: () => Promise<ResourceListingInfo>,
 ) : {groups: Group[] | undefined, dataFetchError: boolean} {
   const [groups, setGroups] = useState<Group[]>();
@@ -51,18 +51,13 @@ export function useDataFetch(
 }
 
 
-interface Partitions {
-  [name: string]: Resource[]
-}
-
-
 /**
- * Groups the provided array of pathVersions into an object with keys
+ * Groups the provided array mapping from path to dates into an object with keys
  * representing group names (pathogen names) and values which are arrays of
  * resource objects.
  */
-function partitionByPathogen(pathVersions: PathVersions, pathPrefix: string, versioned: boolean) {
-  return Object.entries(pathVersions).reduce((store: Partitions, [name, dates]) => {
+function partitionByPathogen(pathVersions: Record<string, string[]>, pathPrefix: string, versioned: boolean) {
+  return Object.entries(pathVersions).reduce((store: Record<string, Resource[]>, [name, dates]) => {
     const sortedDates = [...dates].sort();
 
     const nameParts = name.split('/');
@@ -96,7 +91,7 @@ function partitionByPathogen(pathVersions: PathVersions, pathPrefix: string, ver
  * Turn the provided partitions (an object mapping groupName to an array of resources)
  * into an array of groups.
  */
-function groupsFrom(partitions: Partitions, pathPrefix: string, defaultGroupLinks: boolean, groupDisplayNames: GroupDisplayNames) {
+function groupsFrom(partitions: Record<string, Resource[]>, pathPrefix: string, defaultGroupLinks: boolean, groupDisplayNames: Record<string, string>) {
   return Object.entries(partitions).map(([groupName, resources]) => {
     const groupInfo: Group = {
       groupName: groupName,