Thank you Heywood, for the information, I did see the original text just before I went to sleep last night but thought I would reply this morning.
I do have her in the 1901 and 1911 census with her family so that's all good.
I will look up Thomas as you suggest and see what I can find, you did mention her mother was Hanoria/Honoria Kivil/Kevil who I know some people have in their trees so that is fantastic that you have seen the record for that.
I have only seen a birth record for a Mary Morrison born 1867 Sligo, this fits with her age in the 1911 census but it didn't mention her mother so at least I am a step further on.
Thank you so much for your time I appreciate it, will see if I can find anything on Michael Colligan and his father Pat.