Hi Kimberley,
Cannot help with your main qution but this extract sheds some light on the salary of a schoolmaster in the 1830's in Galway.
In the east suburbs stands one of the four classical schools founded in Ireland by the munificent bequest of Erasmus Smith; it is a handsome building, erected at an expense of £8000 by the trustees, who allow the master a salary of £I100 per ann., with the privilege of taking boarders. The parochial schools are also aided by the trustees, who allow the master a salary of £40 and the mistress £27. 13s. 10d. per annum; a new school-room has been built on ground given by the trustees, towards defraying the expense of which the inhabitants subscribed £300 and £250 was granted by Government. A school is conducted by the ladies of the Presentation Convent, in which 80 of the girls are maintained and clothed; and there is a large national school on the site of the barrack in Lombard-street for which two good school-rooms have been built at an expense of £601 raised by subscriptions. There are also 16 private schools, in which are about 660 children. The house of industry and the dispensary, to the latter of which the English Relief Committee of 1832 gave £700, vested in the Archbishop of Tuam as trustee, and government £500, vested in four trustees chosen by the subscribers, are supported in the customary manner. A widows' and orphans. asylum was founded by the Rev. Mr. Fynn, P.P. of St. Nicholas, and is supported under his patronage by subscription. A Protestant poor-house, in which are 20 inmates, is supported by the parochial clergy and the interest of £500, bequeathed to the Warden in trust for the Protestant poor, by the late Mr. Kirwan, of London a native of Galway. A Magdalen asylum is supported by two R. C. ladies, who devote their time and their fortune to its management.
Brian1