diff --git a/src/yyy_data/dummy_electors.clj b/src/yyy_data/dummy_electors.clj
new file mode 100644
index 0000000..367ce76
--- /dev/null
+++ b/src/yyy_data/dummy_electors.clj
@@ -0,0 +1,164 @@
+(ns yyy-data.core
+  (:require [adl-support.utils :refer :all]
+            [clojure.string :as s]
+            ))
+
+(def surnames
+  [
+    ;; top 20 from Wikipedia
+    "Smith"     ;; (1.28%) (occupational name)
+    "Brown"     ;; (0.94%) (nickname)
+    "Wilson"    ;; (0.89%) (patronym)
+    "Robertson" ;; (0.78%) (patronym)
+    "Thomson"   ;; (0.78%) (patronym)
+    "Campbell"  ;; (0.77%) (nickname)
+    "Stewart"   ;; (0.73%) (occupational name)
+    "Anderson"  ;; (0.70%) (patronym)
+    "Scott"     ;; (0.55%) (ethnic name)
+    "Murray"    ;; (0.53%) (territorial name)
+    "MacDonald" ;; (0.52%) (patronym)
+    "Reid"      ;; (0.52%) (nickname)
+    "Taylor"    ;; (0.49%) (occupational name)
+    "Clark"     ;; (0.47%) (occupational name)
+    "Ross"      ;; (0.43%) (territorial name)
+    "Young"     ;; (0.42%) (nickname)
+    "Mitchell"  ;; (0.41%) (patronym; nickname)
+    "Watson"    ;; (0.41%) (patronym)
+    "Paterson"  ;; (0.40%) (patronym)
+    "Morrison"  ;; (0.40%) (patronym)
+    ;; others off the top of my head
+    "Aitkenhead"
+    "Baxter"
+    "Cooper"
+    "Douglas"
+
+    "Frazer"
+    "Gourlay"
+    "Henry"
+    "Keith"
+    "Lang"
+    "Mullen"
+    "Nicholson"
+
+    "Patterson"
+
+    "Riddoch"
+    "Sutherland"
+    "Thomson"
+
+    ])
+
+(def forenames
+  {:unknown ["Alex"
+             "Charlie"
+             "Jack"
+             "Jude"
+             "Leslie"]
+   :non-binary [] ;; non-binary people may have any personal name.
+   :female ["Alice"
+            "Belinda"
+            "Catriona"
+            "Dorothy"
+            "Elfrida"
+            "Fiona"
+            "Geraldine"
+            "Henrietta"
+            "Iris"
+            "Joan"
+            "Karen"
+            "Lucy"
+            "Mharidh"
+            "Noreen"
+            "Olivia"
+            "Pauline"
+            "Queenie"
+            "Ruth"
+            "Shirley"
+            ;; T?
+            "Ursula"
+            "Vonnie"
+            "Wanda"
+            ;; X?
+            "Ysabel"
+            "Zara"]
+   :male ["Alistair"
+          "Bruce"
+          "Calum"
+          "Douglas"
+          "Edward"
+          "Fergus"
+          "Gary"
+          "Hamish"
+          "Iain"
+          "James"
+          "Keith"
+          "Lachlan"
+          "Michael"
+          "Nicholas"
+          "Oliver"
+          "Patrick"
+          "Quentin"
+          "Robert"
+          "Simon"
+          "Torquil"
+          "Uchtred"
+          "Victor"
+          "William"
+          ;; X?
+          ;; Y?
+          ;; Z?
+          ]})
+
+(def genders
+  ;; assume a population 40% female, 40% male, 10% non-binary and 10% unknown gender
+  [:female :female :female :female :male :male :male :male :unknown :non-binary])
+
+(defn make-elector
+  ([dwelling]
+   (make-elector dwelling (rand-nth surnames)))
+  ([dwelling s]
+   (let
+     [gender (rand-nth genders)
+      surname (if (nil? s) (rand-nth surnames) s)
+      forename (rand-nth
+                 (case
+                   gender
+                   :male (concat (:male forenames) (:unknown forenames))
+                   :female (concat (:female forenames) (:unknown forenames))
+                   :unknown (:unknown forenames)
+                   (reduce concat [] (vals forenames))))]
+     {:gender (capitalise (name gender))
+      :name (s/join " " (list forename surname))
+      :dwelling dwelling})))
+
+(defn make-electors
+  ([]
+   (for [d (range 100)]
+     (make-electors d)))
+  ([dwelling]
+  (let [n (+ 1 (rand-int 5)) ;; between 1 and 6 electors in a household
+        s (if (< (rand-int 3) 2) (rand-nth surnames))]
+    (make-electors dwelling s n)))
+  ([dwelling s n]
+   (if
+     (zero? n) '()
+     (cons (make-elector dwelling s)
+           (make-electors dwelling s (- n 1))))))
+
+
+
+(defn generate-insert-query
+  [elector]
+  (str "INSERT INTO electors (name, gender, dwelling_id) values ('"
+       (:name elector)
+       "', '"
+       (:gender elector)
+       "', "
+       (:dwelling elector)
+       ");"))
+
+(spit
+  "insert-electors.sql"
+  (s/join "\n\n" (map generate-insert-query (flatten (make-electors)))))
+
+