Don't know where to start

[heywood]

....but here is one for John to those parents in 1855. The residence is shown as ‘Analoist’. It is a transcript.

Heywood, here's the townland of Annaloist beside Lough Neagh.

https://www.townlands.ie/armagh/oneilland-east/seagoe/brownlows-derry/annaloist/

Great - thank you

[Neale1961]

There is a death on Scotland's people could be a possibility
Catherine McGuire other name Mulligan 1899 St Rollox age 57  mothers maiden name Cosgrove

This should tell you if she was a widow, or if her husband Thomas was still living.

There are quite a few possible deaths for Thomas, that you would be best to try and reduce your search time frame.

[rosie17]

Francis John McGuire is with his Sarah – his sister’s family in 1911 Glasgow.

Sarah McGUIRE married Francis SHIELDS in 1905 Blythswood
That might be a useful record to see whether it says her father is dead or alive.

Sarah died in Glasgow in 1954.

He has a copy of the marriage 1916: for Francis John McGuire on his tree and father deceased .The father doesn't seem to be on any of the census forms after 1881 checking the death for Catherine 1899 will give information on Thomas if he is still alive

Rosie

[heywood]

Just for information, but it gives you a timeline to work with.
Baptism of Mary A , 11th April 1847 with parents John and Sally, Analoist.

https://registers.nli.ie/registers/vtls000633281?locale=en#page/99/mode/1up

There is also Alice, baptised April 1851

[Neale1961]

He has a copy of the marriage 1916: for Francis John McGuire on his tree and father deceased .The father doesn't seem to be on any of the census forms after 1881 checking the death for Catherine 1899 will give information on Thomas if he is still alive

Correct - which was why I previously suggested the same.

[rosie17]

He has a copy of the marriage 1916: for Francis John McGuire on his tree and father deceased .The father doesn't seem to be on any of the census forms after 1881 checking the death for Catherine 1899 will give information on Thomas if he is still alive

Correct - which was why I previously suggested the same.

My internet was playing up posted after you had  apologies

Rosie

[mrjmitchell]

When he married in 1876 Thomas Maguire was a widower.
Was his previous marriage in Ireland?      Scotland?     Elsewhere?
I didn’t see any likely marriage in Ireland. 

I had a search through Irish records for Thomas's previous marriage but couldn't find anything which is strange.

[mrjmitchell]

Francis John McGuire is with his Sarah – his sister’s family in 1911 Glasgow.

Sarah McGUIRE married Francis SHIELDS in 1905 Blythswood
That might be a useful record to see whether it says her father is dead or alive.

Sarah died in Glasgow in 1954.

Excellent! Thank you. I did have my great Grandfather Francis John on this census record and wasn't sure who he was living with. Confirms it's his sister and husband.

[gaffy]

Here is the parish record - Maguire - which gives his parents as John and Sarah McMahon. Unfortunately, the parents residence has been scribbled over.
https://registers.nli.ie/registers/vtls000633206?locale=en#page/50/mode/1up

Faffing about with light and contrast, I read Aughagallon, which may be Aghagallon (civil parish and townland within) - which isn't too far from Annaloist.