top of page



April Greer
Greer, April2.jpg


My name is April Greer and I am excited to join the Old St. Mary’s School and Church family where I was drawn to the warm and welcoming community, but most importantly, I was drawn to the school mission and diversity statement. I hail from the south side of Chicago, a graduate of St. Margaret of Scotland Elementary School and Mother McAuley Liberal Arts High School. I am a UIUC alum and hold a BA in Economics. After undergrad, I began work as a substitute teacher which re-ignited my passion for education. I received my MA and MEd from Saint Xavier University and Loyola University respectively. I punctuate my school career with my last year as a PhD student in Educational Leadership at DePaul University. I have spent 30 years as an educator with a variety of unique educational opportunities ranging from homeschooling to interim principal, but my most memorable years started with the Academy of St Benedict the African and have recently concluded with a three year stay at DePaul College Prep as Dean of Students to over 900 young adults. I am a nationally trained SEED leader and I am passionate about diversity, inclusion, equity, and belonging. Faith, respect, and justice are the center of my being. Now, I begin a new chapter with our wonderful community where I look forward to an eventful school year of serving as Principal Greer or Ms. April. I am honored to be uKnighted with the Old St. Mary’s community and immersed in a world where I am helping to prepare future leaders to be productive, responsible, and impactful members of the world community. I invite you to join me for monthly Principal Chats in the upcoming months where you will learn more about me and inversely, I hope to learn more about you and your family. Warm regards, April Greer



Andrew Ramker
Andrew Ramker.jpg


My name is Andrew Ramker, and I go by Mr. Ramker or Coach Ramker to many of our students and families. I have worked here at Old St. Mary's since 2015. I've taught PE almost all of that time, in addition to serving as the Athletic Director for most of those years. This is my first year as an Assistant Principal and I will continue to serve as the Athletic Director. I'm excited to move into this role and continue my job of providing our students with a safe environment to learn and grow both in the classroom and outside of it. I feel very fortunate to be able to share my passion of athletics with our students. I am proud Indiana University alum and was born and raised a Hoosier just over the state line in Hammond, IN. I love all sports but really enjoy spending time on the golf course or watching the Bears and Hoosiers play. I look forward to meeting everyone soon!


Elizabeth Duff




My name is Ms. Duff-Russo and this is my seventh year at Old St. Mary's, my second as assistant principal. I hold a BA in elementary education and an MA in Curriculum and Instruction, both from Boston College. Last spring, alongside five of my colleagues here at OSM, I earned my MA in educational leadership with a Catholic principal endorsement from DePaul University. I began my career as a part of Boston College's Urban Catholic Teacher Corps teaching second and third grade at a Catholic school in Boston. Although I loved Boston for the six years I was there, I was thrilled to return home to Chicago and work just two miles from my high school alma mater, St. Ignatius. Before moving into my role as assistant principal of curriculum, I taught fifth, sixth, and eighth grade here at Old St. Mary's. I am passionate about our commitment to Catholic identity and its intersection with diversity, equity, and inclusion. My role is to work alongside teachers as we look critically at our curriculum and instruction, leveraging our expertise and collaboration to form students who "lead through faith, grow in knowledge, and serve with love." I look forward to a terrific year working in tandem with students, families, and staff as we live into this mission!



Shannon Carrsello
Shannon Carsello.jpg


I've been with Old St. Mary's for the past 4 years, both as consultant and now as the Finance Director. I have worked in the Archdiocese of Chicago at various churches and schools for the past 20 years. I was born and raised in Chicago, attending both Catholic Elementary and High Schools in the city. I hold a BS in Accountancy from the University of Illinois - Champaign.


Aimee Hwang


Aimee Hwang.jpg


Hello, my name is Aimee and I go by Nurse Aimee or Ms. Aimee to our students. I’ve been at OSM for 12 years. My background in nursing includes Medical/Surgical, PACU (Post Anesthesia Recovery Unit), Cardiac/Neuro/general Intensive Care Units, and dermatology. You will see me in the Nurse’s Office and look forward to helping the students when in need.



Beth Toth
Beth Toth.jpg


Hi. My name is Beth Toth and I am a School Nurse at OSM. I go by Nurse Beth. I've been an employee at OSM since 2018 but have been an OSM parent since 2007. Our two daughters have graduated from OSM and are currently in high school. My background in Nursing includes Medical/Surgical, Telemetry, Palliative Care, Workers Compensation Case Management and now School Nursing. I love working with all the students at OSM and keeping our school safe and healthy.






Hi everyone! This is my first year at OSM and I am so excited to be here! I graduated from DePaul with my Masters in School Counseling in June of this year and am working towards obtaining my LPC (licensed professional counselor) credentials as well. In my free time you can catch me on a run, rooting on the Sox or Bears or playing with my dog. I am looking forward to a wonderful school year!


​Stephanie Hagerman

Stephanie Hagerman



Hello! My name is Stephanie Hagerman. I have worked in education for over 20 years as a tutor, a 6th grade homeroom teacher, a 6th-9th grade math teacher, and most recently, a school Administrative Assistant. I also enjoy singing, and writing faith-based plays and short stories. I love serving people and serving God with any and every gift He has given me. I will strive to ensure that Old St. Mary's School is a positive, receptive, and fertile place for young minds and for all who enter these doors. Thank you for allowing me to be a part of this blessed school family.


Abbey Laird




My name is Abbey Laird and I go by Miss Laird to our students. My pronouns are She/Her. I started at Old St. Mary's the 21-22 school year as the Enrollment Director; you'll frequently see me in the front office or roaming the school on family tours. I'm originally from Seattle and live in Logan Square with my cat, Clementine. I graduated from the University of Iowa in May 2021 with a dual degree in English & Creative Writing and Cinema. I love working with our students and getting to know our families, both old and new. Go Knights!


Lourdes Cisneros




Hi, My name is Maria L and I go by Ms. Lourdes. My pronouns are She/Her. I've been at Old St. Mary's since 2010. I'm responsible for the facilities operations and maintenance, but most importantly for keeping a safe and healthy environment for the students and staff


Patti Murph




My name is Patti Murphy. I am the Archdioceses Onsite Administrator for the Old St. Mary's Campus. I assist in coordinating all events for the church and the school. I work closely with Administration and the Family & School associations

bottom of page