To many John O'Connors

[riannisuileabhain]

This family in the 1901 census, no sign of a John though 
http://www.census.nationalarchives.ie/pages/1901/Limerick/Oola/Oola/1515540/

[Kiltaglassan]

This family in the 1901 census, no sign of a John though 
http://www.census.nationalarchives.ie/pages/1901/Limerick/Oola/Oola/1515540/

Here's Catherine born at Oola-
https://civilrecords.irishgenealogy.ie/churchrecords/images/birth_returns/births_1900/02006/1771163.pdf

[Just.me]

Thank you. Doubt that is the right family as John does not appear with them. Our name is O'Connor I know spellings change tho. Yes thank you I have Catherines Birth certificate.

[riannisuileabhain]

Could this be John in 1901? with grandmother Bridget. Considering the names Bridget, Catherine and Johanna appearing in more than one generation its possible.

http://www.census.nationalarchives.ie/pages/1901/Limerick/Dromcolliher/Carroward_West/1510167/

[Just.me]

That's very interesting.  Thank you.  Not seen that before.

[shanreagh]

Just throwing this in from 1901.  John O'Connor aged  7 with grandparents Patrick and Catherine McCoy and widowed mother Mary Anne O'Connor.

http://www.census.nationalarchives.ie/pages/1901/Limerick/Shannon_Ward_No__8_Limerick_City/White_s_Lane/1504024/

[Just.me]

Thank you now if you were able to find  her Marriage certificate and the name was Patrick that would be a high possibility or John birth certificate

Great find

[shanreagh]

I have found a marriage certificate for Maryanne McCoy, then O'Connor who married James Hayes in 1902. 
https://civilrecords.irishgenealogy.ie/churchrecords/images/marriage_returns/marriages_1902/10295/5747444.pdf

(She may have slightly altered her age so as not to be older than her husband)

Then a 17 year John Joseph O'Connor living with them as a step son, to James Hayes,  in the 1911 census.
http://www.census.nationalarchives.ie/pages/1911/Limerick/Limerick_No__3_Urban/Arthur_s_Quay/628367/

J J O'Connor is shown as a scholar at that time with a birth in Limerick City.  The earlier 1901 census shows the McCoy and O'Connor family al being born at St Michaels Limerick. Possibly meaning baptised there. 

[Just.me]

Thank you. I do think your on to something. My doubt is with the wedding cert as Mary shower as a spinster and if previously  married to O'Connor that  would appear as her name? I have been looking for a Patrick O'Connor marrying MaryAnne Mc Coy but nothing.