diff --git a/Submarines/SsgnOhioUnitedStates/TridentHatch.x3d b/Submarines/SsgnOhioUnitedStates/TridentHatch.x3d
index 7bad5e3414b4f1fdfa5f134b5501008127d04a3e..4b595a5299fb35c3974cb5c812eea5c9004bf62f 100644
--- a/Submarines/SsgnOhioUnitedStates/TridentHatch.x3d
+++ b/Submarines/SsgnOhioUnitedStates/TridentHatch.x3d
@@ -6,13 +6,14 @@
     <meta content='Trident Hatch for Ohio Class SSBN or SSGN' name='description'/>
     <meta content='Jeffrey Weekley' name='creator'/>
     <meta content='19 September 2001' name='created'/>
-    <meta content='10 November 2002' name='modified'/>
+    <meta content='28 November 2019' name='modified'/>
     <meta content='Special Purpose Ohio Class Nuclear Submarine' name='subject'/>
     <meta content='https://savage.nps.edu/Savage/Submarines/SsgnOhioUnitedStates/TridentHatch.x3d' name='identifier'/>
     <meta content='X3D-Edit 3.2, https://savage.nps.edu/X3D-Edit' name='generator'/>
     <meta content='../../license.html' name='license'/>
   </head>
   <Scene>
+    <WorldInfo title='TridentHatch.x3d'/>
     <Background groundAngle='1.309 1.570796' groundColor='0 0.2 0.4 0.05 0.25 0.6 0.1 0.2 0.4' skyAngle='1.309 1.571' skyColor='0.1 0.1 0.4 0.1 0.125 0.4 0.1 0.1 0.3'/>
     <Group DEF='TridentHatchAssembly'>
       <Transform scale='0.2 0.2 0.2'>
diff --git a/Submarines/SsgnOhioUnitedStates/TridentMissileTubeExample.x3d b/Submarines/SsgnOhioUnitedStates/TridentMissileTubeExample.x3d
index 5f17e1e4792cbe26d8f34c41a244f4990b2926c3..5af6ec0674546a5ea02ef4456789132c621d141c 100644
--- a/Submarines/SsgnOhioUnitedStates/TridentMissileTubeExample.x3d
+++ b/Submarines/SsgnOhioUnitedStates/TridentMissileTubeExample.x3d
@@ -6,7 +6,7 @@
     <meta content='Trident Missile Tube for Ohio Class SSBN or SSGN' name='description'/>
     <meta content='Jeffrey Weekley' name='creator'/>
     <meta content='19 September 2001' name='created'/>
-    <meta content='7 April 2012' name='modified'/>
+    <meta content='28 November 2019' name='modified'/>
     <meta content='http://www.fas.org/nuke/guide/usa/slbm/ssbn-726.htm' name='reference'/>
     <meta content='http://www.chinfo.navy.mil/navpalib/cno/n87/usw/issue_6/ssgn.html' name='reference'/>
     <meta content='SsgnSecondCareer.pdf' name='reference'/>
@@ -18,6 +18,7 @@
     <meta content='../../license.html' name='license'/>
   </head>
   <Scene>
+    <WorldInfo title='TridentMissileTubeExample.x3d'/>
     <ExternProtoDeclare appinfo='Builds a Trident missile tube for Ohio Class Submarine.' name='TridentMissileTube' url='"TridentMissileTubePrototype.x3d#TridentMissileTube" "https://savage.nps.edu/Savage/Submarines/SsgnOhioUnitedStates/TridentMissileTubePrototype.x3d#TridentMissileTube" "TridentMissileTubePrototype.wrl#TridentMissileTube" "https://savage.nps.edu/Savage/Submarines/SsgnOhioUnitedStates/TridentMissileTubePrototype.wrl#TridentMissileTube"'/>
     <Viewpoint description='Missile Tubes' position='0 0 30'/>
     <Background groundAngle='1.309 1.570796' groundColor='0 0.2 0.4 0.05 0.25 0.6 0.1 0.2 0.4' skyAngle='1.309 1.571' skyColor='0.1 0.1 0.4 0.1 0.125 0.4 0.1 0.1 0.3'/>
diff --git a/Submarines/SsgnOhioUnitedStates/TridentMissileTubePrototype.x3d b/Submarines/SsgnOhioUnitedStates/TridentMissileTubePrototype.x3d
index 5b4698070076030f5c7303405619ff5ab53077de..705de1d25b188294723ba035f4923cb2ad65759d 100644
--- a/Submarines/SsgnOhioUnitedStates/TridentMissileTubePrototype.x3d
+++ b/Submarines/SsgnOhioUnitedStates/TridentMissileTubePrototype.x3d
@@ -6,7 +6,7 @@
     <meta content='Trident Missile Tube for Ohio Class SSBN or SSGN. Future work: allow closing, boolean eventIns to open and close, expose open/close status.' name='description'/>
     <meta content='Jeffrey Weekley' name='creator'/>
     <meta content='19 September 2001' name='created'/>
-    <meta content='14 January 2014' name='modified'/>
+    <meta content='28 November 2019' name='modified'/>
     <meta content='http://www.fas.org/nuke/guide/usa/slbm/ssbn-726.htm' name='reference'/>
     <meta content='http://www.chinfo.navy.mil/navpalib/cno/n87/usw/issue_6/ssgn.html' name='reference'/>
     <meta content='SsgnSecondCareer.pdf' name='reference'/>
@@ -18,6 +18,7 @@
     <meta content='../../license.html' name='license'/>
   </head>
   <Scene>
+    <WorldInfo title='TridentMissileTubePrototype.x3d'/>
     <ProtoDeclare appinfo='Builds a Trident missile tube for Ohio Class Submarine.' name='TridentMissileTube'>
       <ProtoBody>
         <Group DEF='MissileTube'>