diff --git a/style-guides/josh-mercer.md b/style-guides/josh-mercer.md
index 05b938c..8934d12 100644
--- a/style-guides/josh-mercer.md
+++ b/style-guides/josh-mercer.md
@@ -7,6 +7,7 @@
 **Role:** Fullstack Developer, Freelancer
 **Location:** Rotterdam, Netherlands (originally from UK)
 **Age:** 29
+**Date of Birth:** March 14, 1996
 **Browser:** Firefox
 
 ## Affiliation
diff --git a/style-guides/mara-solheim.md b/style-guides/mara-solheim.md
index 0ac628a..c970ca1 100644
--- a/style-guides/mara-solheim.md
+++ b/style-guides/mara-solheim.md
@@ -7,6 +7,7 @@
 **Role:** Creative Technologist, Independent Consultant
 **Location:** Oslo, Norway
 **Age:** 27
+**Date of Birth:** September 8, 1998
 **Browser:** Firefox
 
 ## Affiliation