diff --git a/households/models.py b/households/models.py
index 7684737..78d1f78 100644
--- a/households/models.py
+++ b/households/models.py
@@ -6,15 +6,13 @@ from common import ApiModel
 
 class Household(ApiModel):
     KEYS: ClassVar[list[str]] = ["id", "name", "slug"]
-
     id: int
     name: str
     slug: str
 
 
 class HouseholdMember(ApiModel):
-    KEYS: ClassVar[list[str]] = ["user_id", "household_id", "role"]
-
+    KEYS: ClassVar[list[str]] = ["id", "display_name", "role"]
     id: int
     display_name: str
     role: str
@@ -24,16 +22,13 @@ class HouseholdInvitation(ApiModel):
     KEYS: ClassVar[list[str]] = [
         "id",
         "household_id",
-        "email",
         "invited_by_user_id",
         "token",
         "expires_at",
         "status",
     ]
-
     id: int
     household_id: int
-    email: str
     invited_by_user_id: int
     token: str
     expires_at: str
diff --git a/households/repository.py b/households/repository.py
index dadbd06..a0a6cb5 100644
--- a/households/repository.py
+++ b/households/repository.py
@@ -83,9 +83,10 @@ async def are_members(conn, household_id: int, user_ids: list[int]) -> bool:
 
 async def list_for_user(conn, user_id: int) -> List[Household]:
     results: List[Household] = []
+    cols = ", ".join([f"h.{k}" for k in Household.KEYS])
     async with conn.execute(
-        """
-        SELECT h.id, h.name, h.slug FROM Household h
+        f"""
+        SELECT {cols} FROM Household h
         JOIN HouseholdMember m ON m.household_id = h.id
         WHERE m.user_id = ?
         ORDER BY h.id
@@ -93,7 +94,7 @@ async def list_for_user(conn, user_id: int) -> List[Household]:
         (user_id,),
     ) as c:
         async for row in c:
-            results.append(Household(id=int(row[0]), name=row[1], slug=row[2]))
+            results.append(Household(**{k: v for k, v in zip(Household.KEYS, row)}))
     return results
 
 
@@ -117,9 +118,10 @@ async def create_for_user(conn, name: str, slug: str, user_id: int) -> Household
 
 async def list_members(conn, household_id: int) -> List[HouseholdMember]:
     members: List[HouseholdMember] = []
+    cols = ", ".join([f"u.{k}" for k in ["id", "display_name"]] + ["m.role"])
     async with conn.execute(
-        """
-        SELECT u.id, u.display_name, m.role
+        f"""
+        SELECT {cols}
         FROM HouseholdMember m
         JOIN User u ON u.id = m.user_id
         WHERE m.household_id = ?
@@ -129,7 +131,7 @@ async def list_members(conn, household_id: int) -> List[HouseholdMember]:
     ) as c:
         async for row in c:
             members.append(
-                HouseholdMember(id=int(row[0]), display_name=row[1], role=row[2])
+                HouseholdMember(**{k: v for k, v in zip(HouseholdMember.KEYS, row)})
             )
     return members
 
@@ -151,14 +153,15 @@ async def create_invitation(
 
 
 async def get_invitation_by_token(conn, token: str) -> HouseholdInvitation | None:
+    cols = ", ".join(HouseholdInvitation.KEYS)
     async with conn.execute(
-        "SELECT id, household_id, status FROM HouseholdInvitation WHERE token = ?",
+        f"SELECT {cols} FROM HouseholdInvitation WHERE token = ?",
         (token,),
     ) as c:
         row = await c.fetchone()
     if not row:
         return None
-    return HouseholdInvitation(id=int(row[0]), household_id=int(row[1]), status=row[2])
+    return HouseholdInvitation(**{k: v for k, v in zip(HouseholdInvitation.KEYS, row)})
 
 
 async def accept_invitation(conn, invitation_id: int, user_id: int, household_id: int):
@@ -173,11 +176,12 @@ async def accept_invitation(conn, invitation_id: int, user_id: int, household_id
 
 
 async def get_household_by_id(conn, household_id: int) -> Household | None:
+    cols = ", ".join(Household.KEYS)
     async with conn.execute(
-        "SELECT id, name, slug FROM Household WHERE id = ?",
+        f"SELECT {cols} FROM Household WHERE id = ?",
         (household_id,),
     ) as c:
         row = await c.fetchone()
     if not row:
         return None
-    return Household(id=int(row[0]), name=row[1], slug=row[2])
+    return Household(**{k: v for k, v in zip(Household.KEYS, row)})
diff --git a/openapi.json b/openapi.json
index b07fd6a..b5ab91c 100644
--- a/openapi.json
+++ b/openapi.json
@@ -381,16 +381,6 @@
             }
           }
         ],
-        "requestBody": {
-          "required": true,
-          "content": {
-            "application/json": {
-              "schema": {
-                "$ref": "#/components/schemas/CreateInvitationBody"
-              }
-            }
-          }
-        },
         "responses": {
           "200": {
             "description": "Successful Response",
@@ -1764,19 +1754,6 @@
         ],
         "title": "CreateHouseholdBody"
       },
-      "CreateInvitationBody": {
-        "properties": {
-          "email": {
-            "type": "string",
-            "title": "Email"
-          }
-        },
-        "type": "object",
-        "required": [
-          "email"
-        ],
-        "title": "CreateInvitationBody"
-      },
       "CurrentShoppingList": {
         "properties": {
           "outstandingItems": {