Writing Marius

Marie (Marius) Mason #04672-061
FMC Carswell
P.O. Box 27137
Fort Worth, TX 76127

Please address letters to “Marie (Marius) Mason.”  Contrary to previous reports, Carswell is not accepting mail addressed to “Marius.” If your mail is rejected, let us know at

Under no circumstances mention any illegal acts. Letters that mention other Green Scare prisoners may be rejected.

Marius has a list of 100 pre-approved people he can write to; this means he will be able to receive your letter but until your name is added to his list he cannot write back.  Marius can request people to be added/removed but this takes time and is not always granted.

Everyone must use their first and last name when writing.  If letters are not entirely in English, they may be delayed up to several months. Be sure to include your return address on the envelope and in the letter/card. You may also want to include his name and prisoner number on the letter/card in case it gets separated from the envelope during processing.  Page numbers are also helpful in case of lost pages (example: page 1 of 5).

Last, do not send anything that is “affixed” to the letter or card – such as glitter, glue, or white-out. Pen, pencil, crayon and paint are fine.

 Phone Calls:
Recordings of phone conversations with Marius are not allowed and will result in punitive repercussions for Marius. Any recordings must be approved by the prison.

Donate to Marius’ Support Fund

Please donate to Mason’s support fund!  All donations made through this website are used for Marius’ support.

Donations help Marius pay for postage and telephone calls home.  Art supplies, magazine subscriptions, books, and other materials.  Visitors, including his children, friends, and supports must fly to Texas to see him where they have rent a car and stay in a hotel near the prison. Marius is vegan and must buy additional food from the prison commissary.  Marius’ attorneys – even though they work pro bono – have many expenses as well.

Make checks or money orders out to “Support Marie Mason” and send to:

Support Marius Mason
POB 201016
Ferndale, MI 48220

You can also make a donation via Paypal.


Donations by Venmo are made through our friends at Fifth Estate: Please include a comment noting your donation is for Marius. @Fifth-Estate

Send Books

Books must be sent via Amazon or directly from publisher but Marius can receive hard and softcover and more than one book at a time.  Your name must be included as the sender (although Marius doesn’t always receive this info so please also send him a separate card or a letter telling him you sent the book so he knows who sent it).

Marius frequently requests books on art, poetry, animals, social struggle, political theory, and how-to books on drawing/ painting.

Marius also has a wish list:

General Support flyers

Spread the word about Marius!  Below are some zines, flyers, and posters to be copied and distributed.