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Sr. Dee Leaving at the End of the School Year

On Wednesday, September 7th, Sr. Delores Hannon announced her resignation as president of Mercy High School to the Board of Directors effective June 30th, 2023. She has served as president since 2009, having served for 14 years.

Sr. Dee, as she is affectionately known to students, faculty and parents, has overseen many changes at the school. The school facilities have experienced improvements with The Hannon Center for Academic Success, heating and cooling systems, new lockers, bathrooms, a dramatic facelift to the front offices and entryway, to name a few. By the time Sr. steps down, most of the school will have gone through some sort of renovation. Mercy High School has also experienced growth in their academic reputation. “One of the things I’m most proud of is the expectation that our students will be readily prepared for college” Sr. Delores explains. “We’ve expanded our counseling and SAT/ACT preparation, while faculty and staff have increased the expectations of what our students are capable of accomplishing. I have a very strong faith that the Mercy spirit continues to thrive through our students as they serve in their respective communities.”

Sr. Delores  has been an educator for more than 40 years. She grew up in North English, Iowa on a mixed livestock farm, the only child of William and Mary Hannon. She joined the Sisters of Mercy in 1969 and quickly was tapped for leadership in schools. She became a principal at St. Matthew’s Grade School in Kalispell, Montana, in 1978 followed by a short stint at Our Lady of Grace School in Edina, Minnesota, from 1981-1983. From 1983-1995 Sr. Dee was the principal at several grade schools in Iowa. She moved on to serve as the Vice President of the Sisters of Mercy in Cedar Rapids, Iowa, and the President of St. Edmond Catholic School in Fort Dodge, Iowa before ultimately coming to Mercy High School in 2009.

The Board of Directors will form a search committee to begin the search process in the near 

Mercy Welcomes Two New Faculty


Jim Mayberger is our new business and technology teacher.  He comes to us from OPS where he was a curriculum specialist.

He managed the Business Marketing and Information Technology, Family and Consumer Science, Skilled and Technical Science, and Robotics departments.

“I am excited to teach in a faith-based school. I really enjoy being in the classroom and I look forward to being part of the Mercy community.”




Jenna Saraka joins our math department.  She comes to us from Omaha Central, where she taught for five years.  

“I am most excited about joining a staff and community that offers strong educational opportunities and many extracurricular activities for students that are centered around faith. 

I am also excited to work with students who are eager to learn in and out of the classroom!”

Two New Hires for the Advancement Team

Sammie Emsick Becker ’05 has accepted the Director of Events position at Mercy High School and began her new role on June 13, 2022.

Since graduating from Mercy, Sammie earned a bachelor in elementary education, a certificate in Catholic School leadership, and most recently, a Master of Science in educational leadership. Outside classroom teaching, she has served as the athletic director for St. James for the past three years where, in conjunction with supervising all things athletics, annually planned the “Spring Fling” fundraiser where dollars raised went straight to the athletic program. Her most recent “Spring Fling” event set a record for money raised for St. James. She further has event planning experience by way of her time at Dundee Bank, where she was the community involvement coordinator and worked closely with various Omaha businesses to promote and grow relationships with key stakeholders of the bank via special events.

She’s married to Tyler Becker and has two boys Ty (12) and Drew (10). 
Welcome back to Mercy Sammie!

Brian Altenhofen began his new position as Director of Marketing and Communications on July 5th.

He comes to Mercy with a wealth of knowledge having earned a doctorate degree in communication and technology studies from Texas A&M University and teaching at Truman State University for the past five years. He also served as the Director of the Truman Leadership Scholars, mentoring and programming leadership experiences for Truman Scholars. Prior to his academic career he spent five years as a Jesuit Scholastic.

He is married to Michaela Cullan Altenhofen who will return to Mary Our Queen Catholic School teaching 3rd grade. They have four children Dylan (16), Lily (9), Dominic (7), and Clara (3). 



Board Adds Four

January 10, 2020
By Deb Daley

Four new Board members were appointed by the Mercy Education System of the Americas to the Mercy High School Board of Trustees effective January 2020. Mercy is a sponsored by the Sisters of Mercy the Americas.   

The new Board members are: Molly Collins Beran ’97, Ob-Gyn Physician, CHI Health Clinic; Robert R. McGill, President, Robert McGill Construction Company; Annie Messersmith, Vice President/Comptroller, Mutual of Omaha; and Timothy Schmad, Former Executive Director, Omaha Community Playhouse. 

Molly Collins Beran, M.D., is a Mercy graduate who has been a physician for more than 15 years.  She received an English degree from Creighton University and a Doctor of Medicine from the University of Nebraska Medical Center in 2005.  The busy physician has four children and is part of a Mercy legacy as her older sisters Coralie Collins Kroll ’86 and Mary Collins Wolf ’88   attended the school.  The active alumna keeps in touch with classmates. Her educational and health sciences background will be beneficial to the Mercy Board. 

Robert McGill has been involved in construction for 48 years and has used his expertise to support many community organizations’ building projects and committees.  He is a past board member of Creighton Preparatory High School and served on several committees involved in Prep’s building expansions. He was on the Parish Council and Steering Committee at St. Wenceslaus Catholic Church from 1981-1989 and on Creighton University’s Expansion Committee from 2000-2005.  With a strong passion for Catholic schools and the role they plan in the formation of young women and men, he looks forward to this appointment.

Annie Messersmith is returning to the Board. She is the Vice President of the Comptroller Group at Mutual of Omaha and has been with the company for more than 12 years.  She previously served on Mercy’s Board from 2008-2017. Active on the Catholic Charities Board, Messersmith brings experience in financial budgeting, forecasting and strategic planning to the school.  She received her Bachelor of Arts in Accounting from the University of South Dakota in 1982.  Her hopes are to bring her expertise to the mission of Mercy, especially in educating all women regardless of economic ability.  

With more than 40 years of nonprofit experience, Timothy Schmad has lent his talents to numerous community groups including the Rotary Club of Omaha as past president, St. Vincent de Paul Parish Council as past president, Creighton Prep’s Development Committee, Teammates as a Mentoring Board member.  He served as Executive Director of the Omaha Community Playhouse from 2000-2017.  Schmad holds a Bachelor’s of Applied Science from the University of Nebraska-Lincoln.  He hopes to bring his business and volunteer acumen to Mercy and help the school fulfill its mission.