diff --git a/Supporters/lib/Supporters.pm b/Supporters/lib/Supporters.pm
index 1cc3c67..9ef9131 100644
--- a/Supporters/lib/Supporters.pm
+++ b/Supporters/lib/Supporters.pm
@@ -445,6 +445,30 @@ sub getPublicAck($$$) {
 }
 ######################################################################
 
+=begin isSupporter
+
+Arguments:
+
+=over
+
+=item $donorId
+
+   Valid donor id number currently in the database.  die() will occur if
+   the id number is not in the database already as a donor id.
+
+=back
+
+Returns the a boolean indicating whether or not the donor is a Supporter (as
+opposed to an ordinary donor).  undef will not be returned
+
+
+=cut
+
+sub isSupporter($$$) {
+  return $_[0]->_getDonorField("is_supporter", $_[1]);
+}
+######################################################################
+
 =begin getDisplayName
 
 Arguments:
diff --git a/Supporters/t/Supporters.t b/Supporters/t/Supporters.t
index dcb0559..152ca8e 100644
--- a/Supporters/t/Supporters.t
+++ b/Supporters/t/Supporters.t
@@ -8,7 +8,7 @@
 use strict;
 use warnings;
 
-use Test::More tests => 223;
+use Test::More tests => 227;
 use Test::Exception;
 use Sub::Override;
 use File::Temp qw/tempfile/;
@@ -176,6 +176,28 @@ lives_ok { $publicAckVal = $sp->getPublicAck($sterlingId); }
 
 is($publicAckVal, undef, "getPublicAck: ...and return value is correct.");
 
+
+=item isSupporter
+
+=cut
+
+my $isSupporter;
+
+dies_ok { $isSupporter = $sp->isSupporter(0); }
+        "isSupporter: fails when rows are not returned but _verifyId() somehow passed";
+
+# Replace _verifyId() to always return true
+
+$overrideSub = Sub::Override->new( 'Supporters::_verifyId' => sub ($$) { return 1;} );
+dies_ok { my $ledgerId = $sp->isSupporter(0); }
+        "isSupporter: fails when rows are not returned but _verifyId() somehow passed";
+$overrideSub->restore;
+
+lives_ok { $isSupporter = $sp->isSupporter($olsonId); }
+  "isSupporter: lives when valid id...";
+
+is($isSupporter, 1, "isSupporter: ...and return value is correct.");
+
 =item getDisplayName
 
 =cut