Help please to find Lane/mahoney/O'mahoney

[puggypugs]

Hi all.  Looking for help to trace the following in or around Cork. 
            Hannah Lane/Mahoney/O'Mahoney nee Murphy born 1875
            First husband Dennis Lane.  May have died by 1901 census.
            Second husband Thomas Mahoney. Still alive in 1911  DOB unknown. 
            Third husband Cornelius O'Mahoney around 1918. DOB unkown. 

Children: Elizabeth Eileen (Lil) born 1898 in Castlemagner, Cork. 
               Dennis Lane (Dinny) born 1900
              Thomas Mahoney born 1906
               Richard Mahoney born 1907
               Etta Mahoney born abt 1908 (guess) This may be a nickname. May be Bridget.   Died as a teenager.  No death year found.   
               Hannah Mahoney  born 1912 in Spa Glen, Mallow.   
               Mary O'Mahoney born 1918 in Cork City.
I may have found them in 1901 living with possibly Hannahs parents in Tincorra, Lyre - father Dennis Murphy mother Johannah.  Haven't found any likelies for 1911 despite having all this info.   Would be grateful for fresh eyes to help. 
Thanks for help. 

[dathai]

Margaret Mahony mother Murphy born Mallow 13th July 1909     Etta ?
http://civilrecords.irishgenealogy.ie/churchrecords/details-civil/18cb200549800

[dathai]

Thomas Mahony and Hannah Lane 14th March 1906  Mallow
http://civilrecords.irishgenealogy.ie/churchrecords/details-civil/aaecef6773495

edited to add
cross referenced with Family Search
also maiden name
https://familysearch.org/ark:/61903/1:1:FY8B-YZG

[Sinann]

Denis Lane Hannah Murphy 1896 Kanturk
http://civilrecords.irishgenealogy.ie/churchrecords/details-civil/2456946993816

[Sinann]

Kanturk and Mallow Reg districts are right next to each other, so perhaps Kanturk is her home district for the first marriage and they lived in his district of Mallow.

[Sinann]

There is a Denis Lane - Hannah in the will calendars.
Died 1905
http://www.willcalendars.nationalarchives.ie/reels/cwa/005014918/005014918_00201.pdf
Knockavaddra Mallow

[Sinann]

Only Lane's there in the 1901 Census but no Hannah and the son Denis isn't married
http://www.census.nationalarchives.ie/pages/1901/Cork/Kilshanning/Knockavoddra/1129584/

[Sinann]

That chaps wife Mary may also have Hannah in her name as this 1905 death for Denis Lane gives his age as 70 which would be in keeping with the Denis in the Census aged 64
http://civilrecords.irishgenealogy.ie/churchrecords/details-civil/5fd60813097750

So a dead end there.

[Sinann]

So the 1901 likely family with the Murphys
http://www.census.nationalarchives.ie/pages/1901/Cork/Tincorra/Lyre/1149017/