Boys took classes for the first time in more than 70 years at the Solway College boarding school for girls in Masterton this term.
The last male students to attend the school, which was founded in 1916, were part of a family of British war evacuees who left in 1942, Year 13 dean Sue Franck said.
Aged only 3 and 4 at the time, the Kingston brothers and their 7-year-old sister were under the guardianship of the first principal, Marion Thompson, and their journey so far away from home must have been a strange and confusing experience, she said.
This term, boys from the other side of the world had been attending classes at Solway College, Mrs Franck said, as part of a group of 14-year-old male and female students from France.
"Last year, Solway students made a trip to Annecy in France, where they were billeted with local families, and this term it was our turn to repay the hospitality," Mrs Franck said.