diff --git a/app/views/catalog/_thumbnail_list_collection.html.erb b/app/views/catalog/_thumbnail_list_collection.html.erb
new file mode 100644
index 000000000..4674e1800
--- /dev/null
+++ b/app/views/catalog/_thumbnail_list_collection.html.erb
@@ -0,0 +1,5 @@
+<%# [hyc-override] https://github.com/samvera/hyrax/blob/hyrax-v4.0.0/app/views/catalog/_thumbnail_list_collection.html.erb %>
+<%# [hyc-override] Add alt text for thumbnails  @todo can be removed when fixed upstream %>
+<div class="col-md-3">
+  <%= document_presenter(document)&.thumbnail&.thumbnail_tag({ alt: "Thumbnail for #{document.title_or_label}" }, { suppress_link: true }) %>
+</div>
\ No newline at end of file
diff --git a/app/views/catalog/_thumbnail_list_default.html.erb b/app/views/catalog/_thumbnail_list_default.html.erb
new file mode 100644
index 000000000..a2aa04ebb
--- /dev/null
+++ b/app/views/catalog/_thumbnail_list_default.html.erb
@@ -0,0 +1,12 @@
+<%# [hyc-override] https://github.com/samvera/hyrax/blob/hyrax-v4.0.0/app/views/catalog/_thumbnail_list_default.html.erb %>
+<%# [hyc-override] Add alt text for thumbnails  @todo can be removed when fixed upstream %>
+<% model = document.hydra_model %>
+<div class="col-md-3">
+  <% if model == Hyrax::PcdmCollection || model < Hyrax::PcdmCollection %>
+    <%= document_presenter(document)&.thumbnail&.thumbnail_tag({ alt: "Thumbnail for #{document.title_or_label}"}, suppress_link: true) %>
+  <% else %>
+    <div class="list-thumbnail">
+      <%= document_presenter(document)&.thumbnail&.thumbnail_tag({ alt: "Thumbnail for #{document.title_or_label }" }) %>
+    </div>
+  <% end %>
+</div>
\ No newline at end of file
diff --git a/app/views/hyrax/admin/admin_sets/_show_document_list_row.html.erb b/app/views/hyrax/admin/admin_sets/_show_document_list_row.html.erb
index 76cbbe6ed..767246891 100644
--- a/app/views/hyrax/admin/admin_sets/_show_document_list_row.html.erb
+++ b/app/views/hyrax/admin/admin_sets/_show_document_list_row.html.erb
@@ -1,4 +1,5 @@
 <%# [hyc-override] https://github.com/samvera/hyrax/tree/hyrax-v4.0.0/app/views/hyrax/admin/admin_sets/_show_document_list_row.html.erb %>
+<%# [hyc-override] Add alt text for thumbnails  @todo can be removed when fixed upstream %>
 <% document = show_document_list_row %>
 <% id = document.id %>
 <tr id="document_<%= id %>">
@@ -10,7 +11,7 @@
   <td>
     <div class="media">
       <%= link_to [main_app, document], "class" => "media-left", "aria-hidden" => "true" do %>
-        <%= document_presenter(document)&.thumbnail&.thumbnail_tag({ class: "d-none d-md-block file_listing_thumbnail" }, { suppress_link: true }) %>
+        <%= document_presenter(document)&.thumbnail&.thumbnail_tag({ class: "d-none d-md-block file_listing_thumbnail", alt: "Thumbnail for #{document.title_or_label}" }, { suppress_link: true }) %>
       <% end %>
       <div class="media-body">
         <p class="media-heading">
diff --git a/app/views/hyrax/admin/admin_sets/show.html.erb b/app/views/hyrax/admin/admin_sets/show.html.erb
new file mode 100644
index 000000000..41a374343
--- /dev/null
+++ b/app/views/hyrax/admin/admin_sets/show.html.erb
@@ -0,0 +1,38 @@
+<%# https://github.com/samvera/hyrax/blob/hyrax-v4.0.0/app/views/hyrax/admin/admin_sets/show.html.erb %>
+<%# [hyc-override] Add alt text for thumbnails  @todo can be removed when fixed upstream %>
+<% provide :page_header do %>
+  <h1><span class="fa fa-sitemap" aria-hidden="true"></span> <%= t('.header') %></h1>
+<% end %>
+
+<div class="row">
+  <div class="col-md-12">
+    <div class="card">
+      <%= render 'show_actions', presenter: @presenter %>
+
+      <div class="card-body admin-set row">
+        <div class="col-md-2">
+          <% if has_thumbnail? @presenter.solr_document %>
+            <div class="document-thumbnail">
+              <%= render_thumbnail_tag(@presenter.solr_document, { alt: 'thumbnail' }, { suppress_link: true }) %>
+            </div>
+          <% else %>
+            <span class="fa fa-sitemap collection-icon-search" aria-hidden="true"></span>
+          <% end %>
+        </div>
+        <div class="col-md-10">
+          <%= render 'collection_description', presenter: @presenter %>
+          <%= render 'show_descriptions' %>
+        </div>
+      </div>
+
+      <div class="card-body admin-set-members">
+        <h3><%= t '.item_list_header' %></h3>
+        <%= render 'sort_and_per_page', collection: @presenter %>
+
+        <%= render_document_index @member_docs %>
+
+        <%= render 'paginate' %>
+      </div>
+    </div>
+  </div>
+</div>
diff --git a/app/views/hyrax/base/_file_manager_thumbnail.html.erb b/app/views/hyrax/base/_file_manager_thumbnail.html.erb
new file mode 100644
index 000000000..8f9eeba41
--- /dev/null
+++ b/app/views/hyrax/base/_file_manager_thumbnail.html.erb
@@ -0,0 +1,3 @@
+<%# https://github.com/samvera/hyrax/blob/hyrax-v4.0.0/app/views/hyrax/base/_file_manager_thumbnail.html.erb %>
+<%# [hyc-override] Add alt text for thumbnails  @todo can be removed when fixed upstream %>
+<%= document_presenter(node)&.thumbnail&.thumbnail_tag({ alt: 'thumbnail', class: 'thumbnail-inner mw-100' }, {}) %>
\ No newline at end of file
diff --git a/app/views/hyrax/collections/_list_works.html.erb b/app/views/hyrax/collections/_list_works.html.erb
new file mode 100644
index 000000000..0c34e79e1
--- /dev/null
+++ b/app/views/hyrax/collections/_list_works.html.erb
@@ -0,0 +1,40 @@
+<%# https://github.com/samvera/hyrax/blob/hyrax-v4.0.0/app/views/hyrax/collections/_list_works.html.erb %>
+<%# [hyc-override] Add alt text for thumbnails  @todo can be removed when fixed upstream %>
+<tr id="document_<%= document.id %>">
+
+  <td>
+    <label for="batch_document_<%= document.id %>" class="sr-only"><%= t("hyrax.dashboard.my.sr.batch_checkbox") %></label>
+    <%= render 'hyrax/batch_select/add_button', document: document %>&nbsp;
+  </td>
+
+  <td>
+    <div class='media'>
+      <%= link_to [main_app, document], class: 'media-left', 'aria-hidden' => true do %>
+        <%= document_presenter(document)&.thumbnail&.thumbnail_tag(
+              { alt: "Thumbnail for #{document.title_or_label}", class: 'd-none d-md-block file_listing_thumbnail' }, { suppress_link: true }
+            ) %>
+      <% end %>
+
+      <div class='media-body'>
+        <div class='media-heading'>
+
+          <%= link_to [main_app, document], id: "src_copy_link#{document.id}", class: 'document-title' do %>
+            <span class="sr-only">
+              <%= t("hyrax.dashboard.my.sr.show_label") %>
+            </span>
+            <%= document.title_or_label %>
+          <% end %>
+
+          <br />
+          <%= render_collection_links(document) %>
+
+        </div>
+      </div>
+    </div>
+  </td>
+
+  <td class="date"><%= document.date_uploaded %></td>
+  <td class='text-center'>
+    <span class="fa <%= current_user.trophies.where(work_id: document.id).exists? ? 'fa-star highlighted-work' : 'fa-star-o trophy-off' %>" aria-hidden="true"></span></td>
+  <td><%= render_visibility_link document %></td>
+</tr>
\ No newline at end of file
diff --git a/app/views/hyrax/dashboard/collections/_list_works.html.erb b/app/views/hyrax/dashboard/collections/_list_works.html.erb
new file mode 100644
index 000000000..086ba8a68
--- /dev/null
+++ b/app/views/hyrax/dashboard/collections/_list_works.html.erb
@@ -0,0 +1,44 @@
+<%# https://github.com/samvera/hyrax/blob/hyrax-v4.0.0/app/views/hyrax/dashboard/collections/_list_works.html.erb %>
+<%# [hyc-override] Add alt text for thumbnails  @todo can be removed when fixed upstream %>
+<tr id="document_<%= document.id %>">
+
+  <td>
+    <label for="batch_document_<%= document.id %>" class="sr-only"><%= t("hyrax.dashboard.my.sr.batch_checkbox") %></label>
+    <%= render 'hyrax/batch_select/add_button', document: document %>&nbsp;
+  </td>
+
+  <td>
+    <div class='media'>
+      <%= link_to [main_app, document], class: 'media-left', 'aria-hidden': true do %>
+        <%= document_presenter(document)&.thumbnail&.thumbnail_tag(
+              { class: 'd-none d-md-block file_listing_thumbnail', alt: "Thumbnail for #{document.title_or_label}" }, { suppress_link: true }
+            ) %>
+      <% end %>
+
+      <div class='media-body'>
+        <div class='media-heading'>
+
+          <%= link_to [main_app, document], id: "src_copy_link#{document.id}", class: 'document-title' do %>
+            <span class="sr-only">
+              <%= t("hyrax.dashboard.my.sr.show_label") %>
+            </span>
+            <%= document.title_or_label %>
+          <% end %>
+
+          <br />
+          <%= render_collection_links(document) %>
+
+        </div>
+      </div>
+    </div>
+  </td>
+
+  <td class="date"><%= document.date_uploaded %></td>
+  <td class='text-center'>
+    <span class="fa <%= current_user.trophies.where(work_id: document.id).exists? ? 'fa-star highlighted-work' : 'fa-star-o trophy-off' %>" aria-hidden="true"></span></td>
+  <td><%= render_visibility_link document %></td>
+
+  <td>
+    <%= render 'work_action_menu', document: document %>
+  </td>
+</tr>
\ No newline at end of file