Kathleen O'Hanlon has been teaching in the city for 50 years.
"I think being a teacher is almost something that you're born with, that you always want to be a teacher from the time you're a little girl," said O'Hanlon.
Her faculty and students made sure it was an anniversary she will never forget with an assembly in the cafeteria.
"She's been able to adapt and evolve over 50 years of changes in education terms...She's giving so much to this and it's giving back to her. And you can see that all the time," said Bridesburg Elementary School Principal, Dr. Don DiPaulo.
For more information, check out the video above.
Also, check out Bridesburg Elementary School on their website.