diff --git a/.mailmap b/.mailmap
index e1f0b3a50f..59f4aa8570 100644
--- a/.mailmap
+++ b/.mailmap
@@ -27,3 +27,7 @@ Sadie Bartholomew    <sadie.bartholomew@metoffice.gov.uk> Sadie L. Bartholomew <
 Tim Pillinger        <tim.pillinger@metoffice.gov.uk>     wxtim                <tim.pillinger@metoffice.gov.uk>
 Thomas Coleman       <thomas.coleman@bom.gov.au>          Tom Coleman          <thomas.james.coleman@gmail.com>
 Tomek Trzeciak       <tomasz.trzeciak@metoffice.gov.uk>   TomekTrzeciak        <tomasz.trzeciak@metoffice.gov.uk>
+Mel Hall             <mel.hall@metoffice.gov.uk>          Melanie Hall         <37735232+datamel@users.noreply.github.com>
+Mel Hall             <mel.hall@metoffice.gov.uk>                               <37735232+datamel@users.noreply.github.com>
+Ronnie Dutta         <ronnie.dutta@metoffice.gov.uk>      ronnie.dutta         <61982285+MetRonnie@users.noreply.github.com>
+Ronnie Dutta         <ronnie.dutta@metoffice.gov.uk>                           <61982285+MetRonnie@users.noreply.github.com>
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 9beb7ffe49..d4dc6750d3 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -47,6 +47,7 @@ below:
 * Bruno P. Kinoshita (National Institute of Water and Atmospheric Research, New Zealand)
 * Tim Pillinger (Met Office, UK)
 * Ronnie Dutta (Met Office, UK)
+* Mel Hall (Met Office, UK)
 
 (All contributors are identifiable with email addresses in the version control
 logs or otherwise.)