diff --git a/sci-log-db/src/models/basesnippet.model.ts b/sci-log-db/src/models/basesnippet.model.ts
index f97193d6..994a39b2 100644
--- a/sci-log-db/src/models/basesnippet.model.ts
+++ b/sci-log-db/src/models/basesnippet.model.ts
@@ -144,6 +144,7 @@ export class Basesnippet extends Entity {
 
   @property.array(String, {
     description: 'arbitrray strings meant as tags attached to this snippet',
+    index: true,
   })
   tags?: string[];
 
diff --git a/sci-log-db/src/models/logbook.model.ts b/sci-log-db/src/models/logbook.model.ts
index 076dfb45..6d5c08df 100644
--- a/sci-log-db/src/models/logbook.model.ts
+++ b/sci-log-db/src/models/logbook.model.ts
@@ -21,6 +21,7 @@ export class Logbook extends Basesnippet {
     type: 'string',
     required: true,
     description: 'Name of logbook as presented to user in GUI',
+    index: true,
   })
   name: string;
 
@@ -28,6 +29,7 @@ export class Logbook extends Basesnippet {
     type: 'string',
     description:
       'Optional detailed definition of contents and purpose of this logbook',
+    index: true,
   })
   description?: string;
 
diff --git a/sci-log-db/src/models/paragraph.model.ts b/sci-log-db/src/models/paragraph.model.ts
index 8f190e91..f03bce70 100644
--- a/sci-log-db/src/models/paragraph.model.ts
+++ b/sci-log-db/src/models/paragraph.model.ts
@@ -27,6 +27,7 @@ export class Paragraph extends Basesnippet {
   @property({
     type: 'string',
     description: 'Markup contents in markdown (MD) syntax of this paragraph',
+    index: true,
   })
   textcontent?: string;