Meet Sissy.

My name is Mary Katherine Weldon. Everyone calls me Sissy.

I was born in Hahira, Georgia, a small town in the piney woods of South Georgia where my father was born, and his father before him. My Papa's parents were sharecroppers. I attended elementary school in the same building my grandfather did. He walked there, I rode a big yellow bus. That town held religion, racism, sexism, and pride in equal measure, all of it protected by the oppressive humidity of the South. When you mix that with fear and misinformed good intentions, you get an environment that breeds trauma, sexual assault, mental health challenges, and addiction.

I know this because I lived it.

My first experience with activism was at five years old. I had just started school and noticed that the special education students weren't coming to recess with the rest of us. Something inside me — something I couldn't name yet — told me this was wrong. I went to the principal and the special education teacher, and together we formed a plan to include general education students in supporting our classmates to attend recess. That plan still exists at Hahira Elementary School today.

That feeling, the one that rises up when something is unjust, has never left me. It is the thread that runs through everything I have done since.

My father was an alcoholic who died when he was 45 and I was 18. He never received proper care or treatment for his mental health challenges. He never had the opportunity to get well. I am a survivor of sexual assault and rape, and I know intimately how the forces of conditioning and culture can create the conditions for violence — but it took me years to see it that way, and I am still unlearning.

School was my safe haven. By fifth grade I was class president, excelling academically, and had even won a trip to space camp through a national essay contest. The more involved I became in school, the less time I had to spend at home. I had teachers who valued my intelligence and reframed what others called "bossiness" as tenacity and determination. I remained class president all four years of high school, served on the Student Board for my local foodbank, and held titles in various student and community organizations. My most cherished title was being the youngest-ever member of the Board of Directors for the Haven Battered Women's Shelter.

At the University of Georgia, I enrolled in an Introduction to Women's Studies course out of curiosity. The eyes of my critical brain were opened, and once opened, they were impossible to shut. Also, I did not want to shut them. During my freshman year, my sorority sister was raped in a brutal way within my first few weeks on campus, and I soon discovered this was a common experience for other freshman women. That feeling of injustice began to consume me. I knew we had to do something. Along with two other brave freshmen, I founded RSVP: Relationship and Sexual Violence Prevention at the University of Georgia. Today, RSVP is housed in the University Health Center and has expanded to include survivor response initiatives and presentations during freshman orientation.

Since then, I have spent more than a decade designing and directing programs at the intersection of gender equity, reproductive health, and racial justice — across government, philanthropy, and nonprofit sectors. I launched ATL4 Women and Girls, the City of Atlanta's first-ever comprehensive gender equity strategy. I conceived and executed the Mayor's Annual Convening on Women and Girls, bringing together 300+ cross-sector leaders. I led the City's Guaranteed Income pilot for women rebuilding their lives after surviving domestic violence. I co-authored the City's first Racial and Ethnic Health Disparities report with a gender lens. As a consultant, I have secured over $4 million in grant funding for organizations doing this work. I have trained systems administrators, policymakers, and community-based organizations across the country in trauma-informed, healing-centered, and DEI practices.

I also live with three chronic illnesses: endometriosis, adenomyosis, and PMDD. When they flare up, my home becomes my haven, the place where I endure pain and recover. This is not separate from my work. It is part of why I do it. The body is not an afterthought in the fight for liberation. It is the ground we stand on.

In March of 2025, I fulfilled a lifelong dream of moving to New York City. I live here with Boogie, my 11-year-old, pup. She has gone deaf in her old age, which makes her quite quiet, but she still has sass. She is my very best friend and gets along with all living things. She is popular in every neighborhood we have lived in, and everyone in our building adores her. I am not lacking on pet-sitters!

Most importantly, you should know that I believe in a better world. A more equitable, inclusive, healthy, and innovative world. I believe in amplifying and catalyzing systemic transformation upon a foundation of restorative justice and matriarchy. I believe in the resilience of the human spirit, the power of the ballot box, a more just and humane society, mercy, forgiveness — and a better matriarchal society for all.

Hell Hath No Fury is the work I have been building toward my entire life. It is where my rage and my hope meet. It is where the five-year-old who noticed the special education students were missing from recess meets the woman who has spent a decade building systems that include them. It is a sanctuary for women's anger — because our anger is sacred, and it is fuel.

I am building this because I believe another world is possible.

I am building this because I have seen what happens when women are not free.

And I am building this because I am one of them.

Welcome.

— Sissy

Mary Katherine "Sissy" Weldon is the founder of Hell Hath No Fury, a matriarchal coaching and sanctuary-building organization dedicated to creating inviolable, anonymous spaces where women's anger is honored as sacred fuel for liberation.

Sissy brings more than a decade of experience designing and directing programs at the intersection of gender equity, reproductive health, and racial justice across government, philanthropy, and nonprofit sectors. As Program Manager for Gender Equity in the Office of Atlanta Mayor Andre Dickens, she designed and launched ATL4 Women and Girls — the City of Atlanta's first-ever comprehensive gender equity strategy — and led the City's Guaranteed Income pilot for women rebuilding their lives after surviving domestic violence. She also conceived and executed the Mayor's Annual Convening on Women and Girls, convening 300+ cross-sector leaders, and represented the Mayor's Office on the State of Georgia Human Trafficking Taskforce.

Previously, Sissy served as Project Coordinator for Gender Equity in Atlanta's Mayor's Office of Equity & Resilience, where she co-authored the City's first Racial and Ethnic Health Disparities report with a gender lens. At the Conrad N. Hilton Foundation, she coordinated $56M in grantmaking for the Adolescent Substance Use Prevention Strategic Initiative and managed the foundation's partnership with Los Angeles Mayor Garcetti's Office on Gender Equity.

As a consultant, Sissy has partnered with 25+ government agencies, foundations, and nonprofits annually, securing over $4 million in grant funding for clients and facilitating strategic planning, equity-centered program design, and trauma-informed training nationwide. Her select clients include the One Small Change, Black Women's Health Imperative, Center for Social Innovation, and the Women's Justice Network.

Sissy's activism began at age five, when she successfully advocated for special education students to attend recess at her elementary school. As a freshman at the University of Georgia, she founded RSVP: Relationship and Sexual Violence Prevention, which is now housed in the University Health Center and integrated into freshman orientation. She holds a Bachelor of Arts in Religious Studies with a minor in Women's Studies from the University of Georgia.

She is based in New York City, where she lives with her dog and best friend, Boogie.