diff --git a/productMods/edit/forms/addGrantRoleToPerson.jsp b/productMods/edit/forms/addGrantRoleToPerson.jsp
index e20af304..5b470976 100644
--- a/productMods/edit/forms/addGrantRoleToPerson.jsp
+++ b/productMods/edit/forms/addGrantRoleToPerson.jsp
@@ -39,6 +39,8 @@ This is intended to create a set of statements like:
     String intDatatypeUri = XSD.xint.toString();    
     vreq.setAttribute("intDatatypeUri", intDatatypeUri);
     vreq.setAttribute("intDatatypeUriJson", MiscWebUtils.escape(intDatatypeUri));
+    vreq.setAttribute("gYearDatatypeUriJson", MiscWebUtils.escape(XSD.gYear.toString()));
+    
     String predicateUri = (String)request.getAttribute("predicateUri");
     ObjectProperty op = wdf.getObjectPropertyDao().getObjectPropertyByURI( predicateUri ); 
     if( op != null &&  op.getURIInverse() != null ){
@@ -69,7 +71,17 @@ if ( ((String)request.getAttribute("predicateUri")).endsWith("hasPrincipalInvest
  	<c:set var="submitButtonLabel">Investigator</c:set>
  	<c:set var="formHeading">Create a new investigator entry for <%= subjectName %></c:set>
  <% } %>
- 
+
+<c:set var="startYearUri" value="${vivoCore}startYear" />
+<v:jsonset var="startYearAssertion" >
+      ?role <${startYearUri}> ?startYear .
+</v:jsonset>
+
+<c:set var="endYearUri" value="${vivoCore}endYear" /> 
+<v:jsonset var="endYearAssertion" >
+      ?role <${endYearUri}> ?endYear .
+</v:jsonset>
+
 <v:jsonset var="n3ForGrantRole">
     @prefix core: <${vivoCore}> .
     @prefix rdf: <${rdf}> .
@@ -106,9 +118,9 @@ if ( ((String)request.getAttribute("predicateUri")).endsWith("hasPrincipalInvest
     "predicate" : ["rolePredicate", "${predicateUriJson}" ],
     "object"    : ["role", "${objectUriJson}", "URI" ],
     
-    "n3required"    : [ "${n3ForGrantRole}" ],
+    "n3required"    : [ "${n3ForGrantRole}", "${startYearAssertion}" ],
     
-    "n3optional"    : [ "${n3ForNewGrant}" , "${n3ForInverse}" ],        
+    "n3optional"    : [ "${n3ForNewGrant}", "${n3ForInverse}", "${endYearAssertion}" ],        
                                                                                         
     "newResources"  : { "role" : "${defaultNamespace}",
                         "grant" : "${defaultNamespace}" },
@@ -117,7 +129,7 @@ if ( ((String)request.getAttribute("predicateUri")).endsWith("hasPrincipalInvest
     					 "inverseRolePredicate" : "${inversePredicate}" },
     "literalsInScope": { },
     "urisOnForm"     : [ "grant" ],
-    "literalsOnForm" : [ "grantLabel" ],
+    "literalsOnForm" : [ "grantLabel", "startYear", "endYear" ],
     "filesOnForm"    : [ ],
     "sparqlForLiterals" : { },
     "sparqlForUris" : {  },
@@ -145,6 +157,28 @@ if ( ((String)request.getAttribute("predicateUri")).endsWith("hasPrincipalInvest
          "rangeDatatypeUri" : "${stringDatatypeUriJson}",
          "rangeLang"        : "",         
          "assertions"       : ["${n3ForExistingPub}"]
+      },
+      "startYear" : {
+         "newResource"      : "false",
+         "validators"       : [ "datatype:${gYearDatatypeUriJson}" ],
+         "optionsType"      : "UNDEFINED",
+         "literalOptions"   : [ ],
+         "predicateUri"     : "",
+         "objectClassUri"   : "",
+         "rangeDatatypeUri" : "${gYearDatatypeUriJson}",
+         "rangeLang"        : "",         
+         "assertions"       : ["${startYearAssertion}"]
+      },
+      "endYear" : {
+         "newResource"      : "false",
+         "validators"       : [ "datatype:${gYearDatatypeUriJson}" ],
+         "optionsType"      : "UNDEFINED",
+         "literalOptions"   : [ ],
+         "predicateUri"     : "",
+         "objectClassUri"   : "",
+         "rangeDatatypeUri" : "${gYearDatatypeUriJson}",
+         "rangeLang"        : "",         
+         "assertions"       : ["${endYearAssertion}"]
       }
   }
 }
@@ -184,6 +218,7 @@ if ( ((String)request.getAttribute("predicateUri")).endsWith("hasPrincipalInvest
 %>
 
 <c:set var="requiredHint" value="<span class='requiredHint'> *</span>" />
+<c:set var="yearHint" value="<span class='hint'>(YYYY)</span>" />
 
 <jsp:include page="${preForm}" />
 
@@ -198,7 +233,10 @@ if ( ((String)request.getAttribute("predicateUri")).endsWith("hasPrincipalInvest
         <%-- bdc34: for some odd reason id and name should not be grant in this input element. --%>
         <input type="hidden" id="grant" name="grant" class="acReceiver" value="" /> <!-- Field value populated by JavaScript -->
     </div>
-            
+
+    <v:input type="text" label="Start Year ${requiredHint} ${yearHint}" id="startYear" size="7"/>   
+    <v:input type="text" label="End Year ${yearHint}" id="endYear" size="7"/> 
+                   
     <p class="submit"><v:input type="submit" id="submit" value="${submitButtonLabel}" cancel="true" /></p>
     
     <p id="requiredLegend" class="requiredHint">* required fields</p>
diff --git a/productMods/edit/forms/addRoleToPersonTwoStage.jsp b/productMods/edit/forms/addRoleToPersonTwoStage.jsp
index aaf842b6..f5aa961c 100644
--- a/productMods/edit/forms/addRoleToPersonTwoStage.jsp
+++ b/productMods/edit/forms/addRoleToPersonTwoStage.jsp
@@ -38,7 +38,7 @@
 <%@ page import="edu.cornell.mannlib.vitro.webapp.controller.freemarker.UrlBuilder.JavaScript" %>
 <%@ page import="edu.cornell.mannlib.vitro.webapp.controller.freemarker.UrlBuilder.Css" %>
 <%@ page import="edu.cornell.mannlib.vitro.webapp.utils.TitleCase" %>
-
+<%@page import="edu.cornell.mannlib.vitro.webapp.edit.n3editing.StartDateBeforeEndDate"%>
 
 <%@ page import="org.apache.commons.logging.Log" %>
 <%@ page import="org.apache.commons.logging.LogFactory" %>
@@ -83,6 +83,8 @@
     vreq.setAttribute("intDatatypeUri", intDatatypeUri);
     vreq.setAttribute("intDatatypeUriJson", MiscWebUtils.escape(intDatatypeUri));
 
+    vreq.setAttribute("gYearMonthDatatypeUriJson", MiscWebUtils.escape(XSD.gYearMonth.toString()));
+    
     vreq.setAttribute("roleActivityTitleCase", TitleCase.toTitleCase(vreq.getParameter("roleActivityTypeLabel")));
     ObjectProperty op = wdf.getObjectPropertyDao().getObjectPropertyByURI( predicateUri ); 
     if( op != null &&  op.getURIInverse() != null ){
@@ -97,6 +99,23 @@
 <c:set var="label" value="${rdfs}label" />
 <c:set var="defaultNamespace" value=""/> <%--blank triggers default URI generation behavior --%>
 
+<c:set var="startYearMonthUri" value="${vivoCore}startYearMonth" />
+<v:jsonset var="startYearMonthExisting" >      
+      SELECT ?existingStartYearMonth WHERE {  
+        ?role <${startYearMonthUri}> ?existingStartYearMonth }
+</v:jsonset>
+<v:jsonset var="startYearMonthAssertion" >
+      ?role <${startYearMonthUri}> ?startYearMonth .
+</v:jsonset>
+
+<c:set var="endYearMonthUri" value="${vivoCore}endYearMonth" /> 
+<v:jsonset var="endYearMonthExisting">     
+      SELECT ?existingEndYearMonth WHERE {  
+        ?role <${endYearMonthUri}> ?existingEndYearMonth }
+</v:jsonset>
+<v:jsonset var="endYearMonthAssertion" >
+      ?role <${endYearMonthUri}> ?endYearMonth .
+</v:jsonset>
 
 <v:jsonset var="n3ForNewRole">
 	@prefix core: <${vivoCore}> .
@@ -129,8 +148,8 @@
     "predicate" : ["rolePredicate", "${predicateUriJson}" ],
     "object"    : ["role", "${objectUriJson}", "URI" ],
     
-    "n3required"    : [ "${n3ForNewRole}" ],    
-    "n3optional"    : [ "${n3ForNewActivity}", "${n3ForInverse}" ],        
+    "n3required"    : [ "${n3ForNewRole}", "${startYearMonthAssertion}" ],    
+    "n3optional"    : [ "${n3ForNewActivity}", "${n3ForInverse}", "${endYearMonthAssertion}" ],        
                                                                                         
     "newResources"  : { "role" : "${defaultNamespace}",
                         "roleActivity" : "${defaultNamespace}" },
@@ -138,7 +157,7 @@
     "urisInScope"    : { "inverseRolePredicate" : "${inversePredicate}" },
     "literalsInScope": { },
     "urisOnForm"     : [ "roleActivity", "roleActivityType" ],
-    "literalsOnForm" : [ "title" ],
+    "literalsOnForm" : [ "title", "startYearMonth", "endYearMonth" ],
     "filesOnForm"    : [ ],
     "sparqlForLiterals" : { },
     "sparqlForUris" : {  },
@@ -177,6 +196,28 @@
          "rangeDatatypeUri" : "",
          "rangeLang"        : "",         
          "assertions"       : [ ]
+      },
+      "startYearMonth" : {
+         "newResource"      : "false",
+         "validators"       : [ "datatype:${gYearMonthDatatypeUriJson}" ],
+         "optionsType"      : "UNDEFINED",
+         "literalOptions"   : [ ],
+         "predicateUri"     : "",
+         "objectClassUri"   : "",
+         "rangeDatatypeUri" : "${gYearMonthDatatypeUriJson}",
+         "rangeLang"        : "",         
+         "assertions"       : ["${startYearMonthAssertion}"]
+      },
+      "endYearMonth" : {
+         "newResource"      : "false",
+         "validators"       : [ "datatype:${gYearMonthDatatypeUriJson}" ],
+         "optionsType"      : "UNDEFINED",
+         "literalOptions"   : [ ],
+         "predicateUri"     : "",
+         "objectClassUri"   : "",
+         "rangeDatatypeUri" : "${gYearMonthDatatypeUriJson}",
+         "rangeLang"        : "",         
+         "assertions"       : ["${endYearMonthAssertion}"]
       }
   }
 }
@@ -189,7 +230,7 @@
         EditConfiguration.putConfigInSession(editConfig,session);
     }
     
-    //editConfig.addValidator(new PersonHasPublicationValidator());
+    editConfig.addValidator(new StartDateBeforeEndDate("startYearMonth","endYearMonth") ); 
     
     //this will return the browser to the new activity entity after an edit.
     editConfig.setEntityToReturnTo("?roleActivity");
@@ -213,6 +254,7 @@
 %>
 
 <c:set var="requiredHint" value="<span class='requiredHint'> *</span>" />
+<c:set var="yearMonthHint" value="<span class='hint'>(YYYY-MM)</span>" />
 
 <jsp:include page="${preForm}" />
 
@@ -231,6 +273,9 @@
 	        <p class="inline"><label></label><span class="acSelectionInfo"></span> <a href="<c:url value="/individual?uri=" />" class="verifyMatch">(Verify this match)</a></p>
 	        <input type="hidden" id="roleActivityURI" name="roleActivity" class="acReceiver" value="" /> <!-- Field value populated by JavaScript -->
 	    </div>
+	   
+        <v:input type="text" label="Start Year and Month ${yearMonthHint} ${requiredHint}" id="startYearMonth" size="7"/>    
+        <v:input type="text" label="End Year and Month ${yearMonthHint}" id="endYearMonth" size="7"/>
     </div>   
      
     <p class="submit"><v:input type="submit" id="submit" value="${roleActivityTitleCase}" cancel="true" /></p>
diff --git a/productMods/edit/forms/css/autocomplete.css b/productMods/edit/forms/css/autocomplete.css
index f771a59e..46519f7d 100644
--- a/productMods/edit/forms/css/autocomplete.css
+++ b/productMods/edit/forms/css/autocomplete.css
@@ -7,4 +7,15 @@
 .acSelectionInfo {
     background-color: #d9d9d9;
     padding: .5em 1em;
+}
+
+
+/* jQuery UI autocomplete */
+ul.ui-autocomplete {
+    font-size: .95em;
+}
+
+li.ui-menu-item a.ui-corner-all {
+    text-align: left;
+    padding-left: .25em;
 }
\ No newline at end of file
diff --git a/productMods/edit/forms/css/customForm.css b/productMods/edit/forms/css/customForm.css
index 076a3ea4..9bfb1e34 100644
--- a/productMods/edit/forms/css/customForm.css
+++ b/productMods/edit/forms/css/customForm.css
@@ -104,13 +104,3 @@ option {
     width: 30%;
 }
 
-
-/* jQuery UI autocomplete */
-ul.ui-autocomplete {
-    font-size: .95em;
-}
-
-li.ui-menu-item a.ui-corner-all {
-    text-align: left;
-    padding-left: .25em;
-}
\ No newline at end of file
diff --git a/productMods/edit/forms/css/customFormWithAdvanceTypeSelection.css b/productMods/edit/forms/css/customFormWithAdvanceTypeSelection.css
index 8692614b..fd603423 100644
--- a/productMods/edit/forms/css/customFormWithAdvanceTypeSelection.css
+++ b/productMods/edit/forms/css/customFormWithAdvanceTypeSelection.css
@@ -23,3 +23,4 @@
 .verifyMatch {
     margin-left: .5em;
 }
+