Thousands of pupils have passed through the doors of the 124-year-old school, which has been called five different names.
The North Parade site has catered for pupils from age five to 16 as it chopped and changed between being a primary school to a secondary school.
All Saints' Junior school started its life as North Parade School in 1878 and accepted students of all ages.
It opened in temporary premises at the Salem Sunday School, Bridge Street, on January 14, 1878.
The new school in North Parade was officially opened on November 8 1879, the building remains today as the headmaster's offices and is classed as a Grade Two listed building.
The school was improved with extensions to increase the amount of classrooms in 1894 and 1900.
Though it was one school, the girls and boys were taught separately and had their own play areas. One pupil who started at the school in 1925 remembers the toilets being outside and the teachers been very strict.
The 82-year-old Otley woman said: "It was all one building, but they taught the boys separately to us. I remember the outside toilets at the bottom of the playground.
"I think it is sad it is closing, the school has been there such a long time. I had very happy times there, the teachers taught us discipline and there was no talking in class."
Then after 57 years of teaching young children it changed to Otley Secondary Modern School in 1935 to cater for 11 to 16-year-olds.
Science labs, woodwork and craft rooms were added and bike sheds were brought in as the school was taken over by teenagers.
The school suffered damage in January 1962 when a fire ripped through the woodwork rooms and left many of the classrooms smoked damaged.
The 550 children attending the school at the time were turned away at the school gate and many stood and looked as fire crews battled the blaze.
The science and domestic science rooms were affected and classrooms were covered with soot and were dripping with condensation.
It was claimed that the school was saved from disaster because all the windows and doors were closed.
The fire effected the heating system, water and electric supply, but the cause of the fire was not found.
The fire was discovered by the caretaker when he came to work, a hole several yards square had been burnt through the floor.
After the incident the building was recreated into a craft room and in 1969 the school changed again to become Otley All Saints' C of E Middle School.
The senior pupils went to Prince Henry's Grammar School and juniors from Cross Green joined All Saints.
In 1986 parts of the school became a listed building and it became Otley All Saints' C of E Juniors, before changing to its present title of All Saints' Junior School.
Of the 280 pupils it has today, many of their parents and grandparents have been taught at the school and even by some of the same teachers.
The log books registering every child's day at the school since 1878 have now been removed from the headteacher's room and been given to the West Yorkshire archive service.
A display of old pictures of former pupils over the years, including pictures of the craft room fire in January 1962, will be on show in Otley Parish Church tomorrow.
The pupils and teachers will be attending the school's last service at the Parish Church tomorrow.
The teachers have been trying to locate a time capsule buried at the school from when it was still a middle school.
They are appealing for information from any former pupils who may remember where it was buried.
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