William Hetherington

I am from Australia and am hoping someone can assist me with a letter we have found in my deceased Mother In Law's family treasures. (I have attached the letter in a pdf format and pasted below). We cannot find any connection to the Hetherington surname or find any relationship to the surname. We feel a relationship must exist for my Mother In Law to have had it in amongst her treasures.

Dunmollen 4th March 1874 My Dear Children I Riecevid your Kind and Affectionate letter dated 3 rd Janury 1873 With the Enclosed Soverin and also the peapers For which I return the dear little Children my sincere thanks and may God of his Infinite Goodness and marcey Guard and protect them and this will be My Sincere Prayer for you all whilst I live – I had a letter from Isabella on last Crismas morning the were Boath in the Enjoyment of Good Helth at the time She wrote She expects If the are Speared that the will be Home about August 14 the are in a very unhealthy Station at present I trust that God will Speare them and Bring them in seafty to their Native land Once more I have not had Any account from Annie Seatly the last letter I Had from Her the were in low Scircumstances I Believe the are not doing overly well Willey Joyce Has taken to His Own Hand he sent me word that it was no use for him to be working for Mr. Cobb and get nothing for it the last letter I Had from him He was working in a Soap and Candle Manafactory and that he was doing very well I expect to Hear from them shortly I will send a peaper this time Now my dear children I hope you will write to me as often as possible for by the course of nature I must Shortly Follow those that is Gone Before I am Now in my 82nd year and thanks be to God that my Helth is Still Good But Still I think that it is time to be prepearing for A Final Schange And I think that is best to work While it is day for the night commit When no man can work Now My dear children I must come to a close and I now leave you All Old and young to the Protection of the Devine power to guard and protect you and may the Lord that Ruleth All things prosper ye in all your undertakings this will Be the sincere prayer of your Affectionate Father to death. William Hetherington NB) When you write again direct your letter to Wm Hetherington Dunmollen Omagh County Tyrone Ireland