Kellys in Aghafin, Co. Roscommon

[Clemans]

Looking for help from the Kelly clan!
My 2x great grandmother was Mary McKenna (nee Kelly) who was (we think) from Aghafin near Arigna, Co. Roscommon.  Father might have been John?  Mary died in 1877 aged 41.  Looking for her birth date and any information about her, her parents or her siblings.
Thanks Clemans.

[heywood]

For other searchers, here is her death.
https://www.irishgenealogy.ie/files/civil/deaths_returns/deaths_1877/020554/7212575.pdf

Her residence is shown as ‘Saltenaveeny’.

https://www.townlands.ie/roscommon/boyle/kilronan/lough-allenaltagowlan/seltannaveeny/

Here is the birth of a child Stephen in 1868. Her husband is James. The townland is the same place.
https://www.irishgenealogy.ie/files/civil/birth_returns/births_1868/03416/2252814.pdf

[Kiltaglassan]

....and still living in Saltenaveeny in 1871.

Michael
https://www.irishgenealogy.ie/files/civil/birth_returns/births_1871/03269/2197975.pdf

https://www.openstreetmap.org/relation/4753596#map=13/54.09354/-8.09864

[heywood]

This looks like the marriage in 1858. It is a parish record as civil records did not begin until 1864.
Unfortunately, it doesn’t give parents names.
18th January 1858 - 
Jacobum McCanna and Mariam Kelly - residence ‘Aughafin’.

Aghafin - https://www.townlands.ie/roscommon/boyle/kilronan/aghafin/aghafin/

I see though that you already have this info from earlier threads and know that you are searching for her parents.