We love our Boldt Mavericks


Cafeteria menus

Working together for student academic success by providing nutritious meals in a cost effective and pleasant environment.


 District calendars are listed and approved two years in advance. For individual schools, only campuses with Google Calendars are featured here.


NISD's mission is to provide all NISD students who are eligible to ride the bus a safe, efficient, nurturing environment that supports the educational and extra-curricular objectives of the district.


Northside ISD continues to enforce its “No Shots, No School” policy. Texas law requires all public school children have current immunizations in order to attend class.

Campus Information

Year Open:

Bond Year:

School Mascot: Mavericks

School Colors: Red, white

Mission Statement:
School Motto/Mission and Vision

School Motto: “Building Our Lives and Dreaming Together!”

Mission Statement: Foster academic and social-emotional growth in all students.

Our Vision: Working together to prepare all students for successful life experiences

Principle Mrs. Siller holding a photo
Rosie Siller - Principal
Rosie Siller has been in education for over 29 years and is the proud Principal at Herbert G. Boldt Elementary. Before coming to Boldt, she had the pleasure of being the Principal at Cable Elementary for over ten years. Mrs. Siller also served as Vice Principal at Julia Newton Aue Elementary and Lackland City Elementary, know renamed Jerry D. Allen Elementary, both in the Northside Independent School District. Her experience includes being a Reading Specialist at Bob Lewis Elementary and a 7th/8th grade Reading/Language Arts teacher at Horace Mann Middle School in San Antonio Independent School District.

Mrs. Siller grew up in Pearsall, Texas and graduated from Pearsall High School. After graduation, she attended St. Mary's University and received a Bachelor of Arts, Interdisciplinary Reading. She continued her professional growth and earned two master's degrees in Reading and Educational Leadership from St. Mary's University.

She takes pride in getting to know everyone in the Boldt community. Her dedication and passion is evident as she continues the tradition of success at Boldt. Her belief is that each student deserves to be empowered through their education and each child is indeed a lifelong leader and learner. Though an administrator, her heart is in the classroom.

She was a board member for Girls on the Run a national organization that inspires girls to be joyful, healthy and confident using a fun, experience-based curriculum which creatively integrates running. She is also a board member for the Education Advisory Committee at St. Mary’s University.

Though her focus has always been and will be education, she could not do what she loves without the support and love of her family. Her husband Ernest Vasquez is a Colonel in the U.S. Air Force Reserve currently serving on Active Duty in addition to being a Director of Infrastructure in Technology Services at Northside ISD. They have 4 children, Matt, a Data Engineer, Josh, a student at The University of Texas at Austin, Maddie, a student at St. Mary’s University, and Bryson, a senior at Clark High School.

She is an avid runner having participated in the San Antonio Rock and Roll Half Marathon and local 5K’s.
Picture of Adrianna Martinez Associate Principal of Boldt
Adrianna Martinez - Associate Principal

The Associate Principal also serves as the Campus Behavior Coordinator. They can be reached by email at adrianna.martinez@nisd.net or by phone at (210) 398-2015.

My name is Adrianna Martinez and I am the proud Associate Principal here at Boldt. I have been in education for 12 years where I have served students Kindergarten through Fifth grade as both a classroom teacher and STEM teacher. I started my journey in education at St. Mary’s University where I received my Bachelor’s degree in Interdisciplinary Reading. Shortly after graduation I started in the classroom and found my true passion. My passion for teaching and working with amazing teachers inspired me to attend Sam Houston State University where I earned my Master’s Degree in Educational Leadership with certification for Administration.

I grew up in Houston/Katy area where I attended a small private High School participating in athletics, Student Government, and Girl Scouts. Attending a small high school is what drew me to St. Mary’s where I met my husband. My husband and I have been married for 9 years and have 2 wonderful kids who both attend Boldt.

I came to Boldt in 2020 and found a place I can call home. I am thrilled to be able to serve the community in this new position and I cannot wait for all of the exciting things to come.

Cafeteria Info & Menus
Health Services Information
Buses & Boundaries
District Programs
School Safety