diff --git a/agents/getters/getMembersByGroup.js b/agents/getters/getMembersByGroup.js
index fef8589..09781f8 100644
--- a/agents/getters/getMembersByGroup.js
+++ b/agents/getters/getMembersByGroup.js
@@ -1,22 +1,17 @@
-const { pipe, toPairs, map, reduce, keys, invertObj } = require('ramda')
+const { pipe, toPairs, map, filter, reduce  } = require('ramda')
 const { createSelector } = require('reselect')
 
-const getRelationshipsBySourceTargetType = require('../../relationships/getters/getRelationshipsBySourceTargetType')
+const getRolesBySourceTarget = require('../../relationships/getters/getRolesBySourceTarget')
 
 module.exports = createSelector(
-  getRelationshipsBySourceTargetType,
-  pipe(
-    map(pipe(
-      toPairs,
-      // TODO combine relationships into roles more intellingently
-      // - check for member relationship, otherwise no roles
-      // - handle duplicate relationships of same type (how?)
-      reduce((sofar, [targetId, relationshipsByType]) => {
-        const agentId = targetId
-        const roles = map(() => true, relationshipsByType)
-        const member = { agentId, roles }
-        return [...sofar, member]
-      }, [])
-    ))
-  )
+  getRolesBySourceTarget,
+  map(pipe(
+    toPairs,
+    filter(([targetId, roles]) => roles.member),
+    reduce((sofar, [targetId, roles]) =>  {
+      const agentId = targetId
+      const member = { agentId, roles }
+      return [...sofar, member]
+    }, [])
+  ))
 )
diff --git a/relationships/getters/getRolesBySourceTarget.js b/relationships/getters/getRolesBySourceTarget.js
new file mode 100644
index 0000000..4f1150b
--- /dev/null
+++ b/relationships/getters/getRolesBySourceTarget.js
@@ -0,0 +1,18 @@
+const { createSelector } = require('reselect')
+const { map } = require('ramda')
+
+const getRelationshipsBySourceTargetType = require('./getRelationshipsBySourceTargetType')
+
+// TODO combine relationships into roles more intellingently
+// - handle duplicate relationships of same type (how?)
+
+const getRolesBySourceTarget = createSelector(
+  getRelationshipsBySourceTargetType,
+  map( // map into source
+    map( // map into target
+      map(() => true) // map into relationshipType
+    )
+  )
+)
+
+module.exports = getRolesBySourceTarget