[1][4][3] In the first years of her involvement Mahon was successful in a number of her goals, she increased recruitment and prevented women teachers being forced to cover Laundry and Cookery as subjects.

That year her goal was to prevent teachers on maternity leave to be required to provide their substitute at their own expense.

Almost immediately there was a crisis with the dismissal of the vice president Edmond Mansfield and issues between the INTO and the board of education.

Mahon was sent to London to request the chief secretary Augustine Birrell to hold an inquiry.

Although the secretary was biased against her position, he admitted her statement presented the case well and the Dill commission was set up.

The teachers’ paper, Irish School Weekly in 14 December 1912 claimed "the general who has in every encounter routed the enemy's cavalry, must be retained at the head of the forces."

[1][4][3][7] An issue which arose in her final year on the executive was the War bonus, which granted men double the pay of women.

Mahon refused to accept the British court's jurisdiction but once she was silenced the INTO dropped the case.