CAHILL families in the Brosna Parish area from records 1868-1878 and 1889-1900 eras.
Some  could be brothers/sisters, fathers/sons or men on 2nd or 3rd marriages.  I am presenting them as I have them from my genealogy research. 
Spellings of townlands is my reading of presented writing.
David Cahill married Winifred Leane   Baillibeag/Knegare     Ballybeg

William                             Margaret                       Patrick Cahill                 Denis                        Bridget
bt.18 Jan 1868                 bt. 1 June 1869             bt.15 March 1871         bt.26 May 1873        bt 1 Feb.1876
sp. Tim Cahill                 sp. William Cahill         sp. William Cahill         sp. Wm Cahill            sp. William Cahill
Mary Cahill                       Margaret Cahill          Mary Donoghue            Mary Sullivan            Margaret Cahill
m. Nora Fealy                                                       d.
(dau of John Fealy &                                            m. Catherine Cotter
Ellen Cronin of Duagh)                                     (dau of Dan Cotter & Nora Fealy)
22 July 1893                                                     on 13 Nov. 1897 Brosna
Brosna Church
                                                               Bridget  Cahill             Nora    Cahill
                                                               bt.30 Jan 1898            bt 3 March 1900
                                                              sp. Denis Geany         sp. Thos. Sheehan
                                                               Teresa Connor             Mary Cotter         
b- born      bt - baptised   m - married     d - died    sp - sponsor    wit - witness   s - son   dau - daughter
John Cahill and Ellen Buckley   Glountanlushka

Bridget                          David                       John                     Ellen                       William                  Mary                    Catherine
bt 29 Sept 1867           bt.8 March 1871     bt.26 Dec 1872     bt 21 Feb 1875       bt 27 July 1877     bt 27 July 1877    b.
sp. Tim Buckley        sp. Ml Murphy       sp. Wm Geaney    sp.William Cahill    sp. Wm Cahill       sp Tim Buckley
Bridget Buckley          Cath Guiney             Mary Murphy      Nora Geaney          Hannah Leeny      Ellen Cahill            m. Daniel LANE (s of John
                                                                                                                                                                                             Lane & Ellen Buckley of
                                                                                                                                                                                             Meenvane) on 4 Feb 1899
William Cahill & Mary Dempsey   Cnocavuinne

George Cahill                     Thomas CAHILL
bt. 6 Oct 1867                    b.
sp. James Keane                d.
Elizabeth Kirby                 m. Hannah Sheehan
                                           |
                                           |
Catherine                child                 Nora                       Hannah                      Edmond               John                      Michael           Daniel
bt.2 March 1889    15 aug 1890      22 Nov 1891          29 Nov 1893            15 Aug 1895       16 June 1897         13 Nov 1898     13 June 1900
sp.Edw.Sheehan    Wm Cahill       Denis Morrissy       Dan Cahill               Edm Sheehan       Thomas Sheehan     Pat Sheehan     Denis Downey
Nora Murphy        Cath Cahill      Ellen Morrissy       Cath Cahill               Nora Sheehan      Cath Sheehan         Mary Sheehan  Cath Sheehan
Michael Cahill & Hannah Murphy          Kilmanahan

Joseph OConnor CAHILL
bt 4 feb 1891
sp Dan Murphy
Mary 0Keefe
William Cahill married Mary Leane       Ahane Mountain, Brosna
  |
William CAHILL                                      John                                                         Nora       
bt 5 April 1868                                         bt.16 Feb 1871                                         b.
sp. Wm Leane                                           sp. Denis Geaney & Nora Geaney          m. Charles "Con" HORAN (son of Ty Horan & Mary of Brosna)
Mary Murphy                                                                                                              on 13 Feb 1890

                                                                                                                                                     |
                         
                                                                                                                                                     |
                                                                                                                                                     |
                                                                                                                                                     |
                                                                           Timothy HORAN           Nora                      Catherine             Margaret                  William
                                                                           bt. 11 June 1893             6 March 1895        25 Oct 1896         28 May 1898           6 May 1900
                                                                          sp. Jn Cahill                    Thos OConnor      John Cahill            James OConnor       John Cahill
                                                                            Mgt Horan                     Mary Dempsey    Nora Sheehan       Magt Horan              Mary Foley
Page started 24 Dec 2001
updated March 2004
by 
Margaret
David Cahill married Hannah Bruader (Broderick)    Tuareenablaha

Mary                    Denis              Bridget            David                  Hannah                   Margaret    
bt 2 May 1868     2 Jan 1870      1 Nov 1871    19 Sept 1873       2 March 1876         b.
sp. Wm Cahill      David Cahill    Jn Sullivan      Dan Leane          Pat Broderick     
Catherine Cahill    Mary Cahill    Eliz Sullivan   Nora Leane         Nora Geaney           m. Michael SULLIVAN (son of Jn Sullivan & Julia OConnell
                                                                                                                                        of Knegare) on 18 Feb. 1896 Brosna records
                                                                                                                                         |
                                                                                                                                         |
                                                                                                       John SULLIVAN     Julia                  Hannah              David
                                                                                                       bt. 19 Dec 1896       5 Jan 1898         2 March 1897    14 Nov 1900
                                                                                                       sp. David Cahill       Pat OSullivan    Ml Cahill           Jn Doody
                                                                                                        Bridget Sullivan      Bridget Cahill     Julia Broderick   Catherine Broderick
David Cahill married Mary Leane     Baillebeag/Ballybeg

Timothy CAHILL
bt. 10 Sept 1872
sp. Jn Connor
Mary Sheehan
d.
m. Mary Cronin
|
|
Bridget              Timothy                   Elizabeth                      Nial                  Mary Josephine                 Catherine
bt.10 Jan 1891   18 June 1892           10 Jan 1894                 6 April 1895     1 July 1896                        28 Aug 1897
sp Wm Cahill    Dan Cronin              Ml Cahill                     Dan Leahy        Pat Cahill                           Con Connell
Nora Cronin      Cath OConnell         Mgt Cahill                  Mgt Leahy        Mgt Cotter                         Ellen Connell
Martin William Cahill married Catherine Guiney     Glountane

Nora                         Margaret                    Ellen
bt.25 May 1890       6 Sept 1891               4 Jan 1893
sp. Richard Leahy    James Downey          Wm Curtin
Nora Guiney            Mary Roche               Bridget Wolfe
William Cahill married Hannah Clifford        Toureenfineen

William                     Michael                       Margaret                  child
bt 16 June 1892       2 April 1894               28 Feb 1897             12 Feb 1899
sp David Cahill       Thos Rahilly               Denis Cahill              Ellen Lane
Margaret Cahill      Eliz Moore                  Anne Leane               ? Sheehan              (some details unreadable)
Denis Cahill and Elizabeth OConnor of Crag

William CAHILL
b
d
m. Mary OConnor (dau of Patrick OConnor & Nora Murphy of Derra)   lived Crag
|
Elizabeth
bt. 3 Nov 1894
sp. Phil OConnor
Ellen OConnor
David Cahill & Hannah Flynn of Rockchapel, Co Cork.  
|

Michael CAHILL
b
d
m. Catherine Rahilly on 7 Oct 1893, Brosna records.  lived Knockane, Brosna, Co Kerry
|
Catherine                   David                          Hannah                           Denis
bt 21 Nov 1894         8 June 1896                22 Oct 1898                   18 Aug 1900
sp Denis Cahill         Patrick Flynn             James Flynn                    Jn Broderick
Bridget Rahilly         Cath Mahoney           Mgt Broderick                 Cath Mahoney
Timothy Cahill and Elizabeth Moynihan    Knegare
|
Thomas CAHILL        Catherine                       Cornelius
bt 14 Nov 1896           2 July 1898                    30 May 1900
sp Con Moynihan       Denis McAuliffe           Tim Cahill
Nora Moynihan          Anne McAuliffe            Mary Cahill
BACK to Brosna Index
Ellen Cahill married John CONNOR    Baillabane
|
Margaret                Denis CONNOR                 John                Charles
bt 4 April 1867      1 Aug 1869                         29 Oct 1871    20 Aug 1873
sp Denis Connor    John Cahill                          Tim Cahill      Julia Hartnett
Cath Cahill             Nora Cahill                           ? Leane          Julia Hartnett
Mary Cahill married Daniel CONNELL    Meenamar
|
Bridget CONNELL
bt 29 Jan 1891
sp Michael Rahilly
Catherine Cahill
Ellen Cahill and Daniel SHEEHAN    Tuareenacairte
|
Mary                           Hannah                              Mary
bt 1 Jan 1872               8 July 1873 Lacavane       13 June 1875
sp Denis Sheehan        George Cahill                     Tim Downey
Hannah Cahill              Nora Cahill                        Nora Kerby
Margaret Cahill married Nicholas COTTER    see Cotter
William Cahill and Catherine Daly

Catherine                                            Ellen                                                                                                                   Mary
b                                                         b                                                                                                                         b
m. David FITZGERALD                  m. William LANE, Tureenablaha                                                                       m. James DOWNEY,  Gneeves
Castleisland Parish, Co Kerry          |   
|                                                     Catherine Lane          William LANE           Hannah              Aeneas                        |
Mary FITZGERALD                  bt 6 Oct 1889           31 Jan 1891                4 Dec 1892         15 Aug 1896
bt 26 Aug 1872                             sp. James Downey   Denis Cahill               Jerh Connor        Pat Collins                 |
sp William Cahill                          Cath. Ahern              Nora Murphy            Nora Moore        Nora Moore
Mary Cahill                                                                                                                                                                     |

                                                                                                       Martin DOWNEY              Catherine               Nora Mary                 Mary
                                                                                                       bt 6 April 1890                   23 June 1892         25 April 1894            4 Dec 1895
                                                                                                       sp. Martin Cahill               David Downey       Pat Downey             Pat Downey
                                                                                                       Mary Brosnan                   Nora Cahill             Catherine Downey    Cath Downey
Ellen Cahill married James MORIARTY   Carrigeen
|
Michael MORIARTY         Hannah                Elizabeth               William
bt 13 Dec 1873                    6 Feb 1875           28 April 1876        28 May 1878
sp  Ml Carroll                     Jerh Carroll           Mary Cahill           Jerh Carroll
Ellen Moriarty                    Ellen Carroll          Mary Cahill          Mary Moriarty
Catherine Cahill married John LEANE    Cooligrein
|
Margaret Mary       Aeneas LEANE          Catherine               William Thomas                 Mary                 Nora
bt 28 Dec 1889        16 May 1891              21 Dec 1892          27 Feb 1895                       21 May 1896     7 May 1898
sp. Ml Leane           Nicholas Cotter           Wm Cotter            Nicholas Cotter                 Ml Lane             Tim Casey
Catherine Cotter     Hannah Moynihan       Mary A Cotter      Mgt Cotter                       Mary Cotter      Nora Cotter
Margaret Cahill married John LYONS     Carigeen East
|
Cornelius LYONS
bt 20 June 1891
sp Ty Fitzgerald
Cath Connell
Catherine Cahill married Daniel LEAHY    Ahane, Brosna

Bridget                      Maurice LEAHY 
bt 12 March 1890    28 Nov 1891
sp Tim Cahill           John Leahy
Mary Cronin            Elizabeth Cahill                  
Margaret Cahill & Daniel LEAHY  Ahane, Brosna

Catherine                Hannah Mary
bt 16 Sept 1894     16 Sept 1896
sp Wm Curtin        Wm Cotter
Mary Curtin           Cath Cotter
William CAHILL   + siblings
b.
d.1935
m. Hanoria McEnery (aka Mulverney)   d. 1939    Brosna, Co Kerry
    |
children   +    Bridget                     John                    David                   George
                     5 Feb 1890               24 Aug 1892       6 July 1895         28 Oct 1899
                     Edmund Callahan     David Cahill        David Cahill        Wm Moriarty
                    Ellen McAuliffe        Julia McAuliffe   Mary Cotter        Cath Cahill     
                      d. 1979 K/nagoshel  d. 1978                d. 1979                 d. 1971