Bill Murphy is a great great grandson of Francis O'Mahony through his son Thomas. He believes that Francis had three more sons, among them the fathers of Denver Tim and Rawlins John. Let's follow his reasoning for placing Bartholomew, John, and Francis as brothers of Thomas.

·        There was in Ireland, perhaps still is, a convention that the first born male child be named for his grandfather. The eldest sons of both Thomas and Bartholomew are named Francis. Thus Bartholomew is likely to be Thomas's brother. Also, Bartholomew was godfather of one of Thomas's children.

·        Bill's grandmother was a first cousin of a Wyoming sheep rancher named Mahoney who had a Jesuit son. Denver Tim!

·        Rawlins John and Denver Tim are known to be first cousins. Thus John's father John and Tim's father Francis are probably brothers.

Bill uses the word possible in the following tree because of uncertainties in in his very strong case. Bill invites comments on that part of the tree and the tree as a whole. He has another, much longer tree which adds a subsequent generation.
You may address comments directly to Bill at

Possible Descendants of (Francis) O'Mahony

(Several comments have been added by HAW - capped & bolded.)

Generation No. 1

        1.  (Francis)¹ O'Mahony was born Abt. 1775 in Co. Cork, Ireland, and died Bef. 1852 in Co. Cork, Ireland.  He married N.N.. 

Notes for (Francis) O'Mahony:

No records have been found about Francis, but since the oldest sons of both Thomas and Bartholomew were named Francis, it is very probable that the father of Thomas and Bartholomew was named Francis. It is believed that he lived in the Parish of Kilcrohane, Townland of Glanalin, on the north side of Dunmanus Bay.  It has not been definitely proved that Thomas, Bartholomew, John and Francis are brothers.  Thomas and Bartholomew probably moved to the Townland of Cappaghnacallee after their marriages in 1837 & 1836 respectively, since there were no Mahonys in Cappaghnacallee when the Tithe Applotment was done in 1827

Children of (Francis) O'Mahony and N.N. are:

+      2                 i.       Thomas² O'Mahony, born Abt. 1805 in Co. Cork, Ireland; died July 20, 1867 in Cappaghnacallee, Co. Cork, Ireland.

+      3                ii.       Bartholomew O'Mahony, born Abt. 1807 in Co. Cork, Ireland.

+      4               iii.       John(Black Jack) O'Mahony, born Abt. 1813 in Co. Cork, Ireland; died 1909 in Kilcrohane, Co. Cork.

+      5               iv.       Francis(Frank) O'Mahony, born Abt. 1820 in Co. Cork, Ireland; died March 16, 1898 in Kilcrohane, Co. Cork.

Generation No. 2

        2.  Thomas² O'Mahony ((Francis)¹) was born Abt. 1805 in Co. Cork, Ireland, and died July 20, 1867 in Cappaghnacallee, Co. Cork, Ireland.  He married Mary O'Sullivan February 4, 1837 in St Brigid's Church, Ballydehob, Co. Cork, daughter of Timothy O'Sullivan and Ann Gallagher.  She was born January 26, 1811 in Cappaghnacallee, Co. Cork, Ireland, and died September 27, 1884 in Cappaghnacallee, Co. Cork, Ireland.

Notes for Thomas O'Mahony:

Thomas and his family lived in the Townland of Cappaghnacallee, about a mile and a half southwest of the village of Ballydehob, where he leased 27 acres of land from Thomas S. Cave.  Daughters Nora, born in 1847, and Margaret, born in 1848, both died as infants, probably the result of the famine.  Son John also died young.  Witnesses at his wedding were John Brien and James Sullivan

Notes for Mary O'Sullivan:

Mary was born January 26, 1811 in Cappaghnacallee and died there September 27, 1884.  She had brothers James Sullivan, Daniel Sullivan and a sister Mrs. Richard (Hanora) Leahy, all of whom lived in Cappaghnacallee adjacent to where she and Thomas lived.

Children of Thomas O'Mahony and Mary O'Sullivan are:

        6                 i.       Francis³ Mahony, born November 19, 1837 in Ballydehob, Co. Cork, Ireland; died in New York City.  He married Catherine Bennett February 23, 1867 in Ballydehob, Co. Cork; born Abt. 1844 in Ballydehob, Co. Cork; died in New York City.

Notes for Francis Mahony:

Francis' godparents were James Sullivan and Anne Whooley.  Known as Frank, he emigrated to the US shortly after his marriage and lived in New York City with his wife and family.  Little is known about the family after they arrived in the U.S.  The Information about the children is from the 1880 Census.  Frank was listed as a longshoreman in this census.

        7                ii.       Timothy Mahony, born November 28, 1839 in Ballydehob, Co. Cork, Ireland; died January 4, 1908 in Ballydehob, Co. Cork, Ireland.  He married Catherine Anastasia Mahony June 21, 1881 in Goleen, Co. Cork, Ireland; born Abt. 1859 in Ballyiskeen, Co. Kerry; died April 16, 1910 in Ballydehob, Co. Cork.

Notes for Timothy Mahony:

Timothy's godparents were Michael Jones and Anne Jones.  On the death of his mother in 1884, Timothy took over the lease on the 23 acres of land in the Townland of Cappaghnacallee.  He lived there until his death in 1908.  All of his children, except for Thomas and Patrick who died young, emigrated to the U.S.

        8               iii.       Ellen Mahony, born July 22, 1842 in Ballydehob, Co. Cork, Ireland.  She married N. Regan in Ireland; born in Co. Cork. Ireland.

Notes for Ellen Mahony:

Ellen's godparents were Richard Leahy and Catherine Driscoll.  Ellen and her husband left for the US sometime in the 1860's or 1870's and was never heard from again.

        9               iv.       Mary Mahony, born August 20, 1844 in Ballydehob, Co. Cork, Ireland; died in Ballydehob, Co. Cork, Ireland.  She married Patrick Driscoll February 12, 1870 in Ballydehob, Co. Cork, Ireland; born in Ballydehob, Co. Cork, Ireland; died in Ballydehob, Co. Cork, Ireland.

Notes for Mary Mahony:

Mary's godparents were Charles McCarthy and Mary O'Brien.   Little is known about Mary with the exception that she married Driscoll and had at least two sons, one of whom was named Timothy.  Family history says that Mary and her husband never left the Ballydehob area.

Notes for Patrick Driscoll:

Other than forTimothy and Patrick, there are no entries in the St Brigid's Baptism Register for children of Patrick and Mary.

        10              v.       Nora Mahoney, born February 6, 1847 in Ballydehob, Co. Cork, Ireland.

Notes for Nora Mahoney:

Nora's godparents were John Leahy and Hanora Leahy.  Nothing else is known about Nora.  It is assumed that she died young probably as a result of the famine.

        11             vi.       Margaret Mahony, born June 5, 1848 in Ballydehob, Co. Cork, Ireland.

Notes for Margaret Mahony:

Margaret's godparents were Batt. Mahony and Margaret Leahy.  It is assumed that this Margaret also died young, probably as a result of the famine.

        12            vii.       Margaret Teresa Mahony, born 1853 in Ballydehob, Co. Cork, Ireland; died June 9, 1925 in East Bloomfield, NY.  She married John Mahaney June 2, 1882 in St. Bridget's Church, East Bloomfield, NY; born April 27, 1846 in Ballydehob, Co. Cork, Ireland; died January 2, 1926 in East Bloomfield, NY.

Notes for Margaret Teresa Mahony:

No record of Margaret Teresa's baptism in the Ballydehob church.  Margaret came to the US in 1880 with her sister Hannah and Hannah's baby daughter Catherine.  Two years later she married John who was also a Mahony, a distant cousin.  Margaret and John lived on a farm in East Bloomfield, NY

Notes for John Mahaney:

John's godparents were Patrick Hickey and Catherine Tuomy.  He came to the US in 1861 with his parents Florence Mahony and Ellen Tuomey.  He became a US citizen on October 19, 1868.  Shortly after coming to the US he changed the spelling of his name to Mahaney.

        13           viii.       John Mahony, born November 17, 1854 in Ballydehob, Co. Cork, Ireland.

Notes for John Mahony:

John's godparents were John Collins and Margaret Ryan.  He also died young.

        14              ix.       Hannah Mahony, born 1855 in Ballydehob, Co. Cork, Ireland; died January 12, 1901 in East Bloomfield, NY.  She married Timothy Sheehan February 8, 1879 in Ballydehob, Co. Cork, Ireland; born April 2, 1848 in Ballydehob, Co. Cork, Ireland; died January 3, 1937 in East Bloomfield, NY.

Notes for Hannah Mahony:

No record of Hannah's baptism in the Ballydehob church.  Hannah came to the US in 1880 after her first child was born.  She and Tim lived on a farm in East Bloomfield, NY.  She died January 12, 1901.

Notes for Timothy Sheehan:

Timothy lived in the Townland of Coolagh about 1 mile northwest of the village of Ballydehob.  He emigrated to the U.S. in 1860 and settled in East Bloomfield, NY.  He returned to Ireland in 1879 to marry Hannah.

        3.  Bartholomew² O'Mahony ((Francis)¹) was born Abt. 1807 in Co. Cork, Ireland.  He married Catherine Driscoll February 16, 1836 in Ballydehob, Co. Cork, Ireland.  She was born in Ballydehob, Co. Cork, Ireland.

Notes for Bartholomew O'Mahony:

Bartholomew and his family lived in the Townland of Cappaghnacallee where he leased 27 acres of land from Thomas S. Cave.  This property was close to that where Thomas O'Mahony lived.  He was replaced on the valuation books in 1873 by Timothy Driscoll.  It is believed that he and his family emigrated one or two years prior to this.  Witnesses at his marriage were John O'Brien and James Heas (Hayes)?

Children of Bartholomew O'Mahony and Catherine Driscoll are:

        15               i.       Francis³ Mahony, born December 31, 1836.

        16              ii.       Nora Mahony, born March 6, 1839.

        17             iii.       Catherine Mahony, born March 3, 1847 in Ballydehob, Co. Cork; died October 24, 1930 in Brookline, MA.  She married Denis Harrington February 25, 1868 in Ballydehob, Co. Cork, Ireland; born March 1845 in Ballydehob; died April 19, 1914 in Brookline, MA.

Notes for Catherine Mahony:

Godparents were Jeremiah McGrath and Margaret Donovan

        18             iv.       Bartholomew Mahony, born May 10, 1850.

        19              v.       John Mahony, born October 21, 1852.

        20             vi.       Mary Mahony, born March 18, 1855.

        21            vii.       William Mahony, born October 21, 1860.

        4.  John(Black Jack)² O'Mahony ((Francis)¹) was born Abt. 1813 in Co. Cork, Ireland, and died 1909 in Kilcrohane, Co. Cork.  He married Ellen Coughlan February 8, 1843 in Kilcrohane, Co Cork. 

Notes for John(Black Jack) O'Mahony:

Black Jack and his family lived in the Townland of Killeen, Parish of Kilcrohane.  Witnesses at the wedding of John and Ellen were Timothy Coghlan and Jerry Coghlan.

Children of John (Black Jack) O'Mahony and Ellen Coughlan are:

        22               i.       Julia (Hannie)³ Mahony, born May 23, 1844.  She married Peter Tobin.

        23              ii.       Mary Mahony, born July 27, 1845.  She married Timothy Arundel (BROTHER OF HENRY OF ARUNDEL PUB
  - AHAKISTA, HAW's GRANDFATHER;
  - THESE ARE PARENTS OF THERESA (ARUNDEL) DALY, MOTHER OF ARNOLD J. DALY)..

        24             iii.       Jeremiah Mahony, born January 1, 1847. NB: Helena's birthdate;  He married Martha Moss.

        25             iv.       Helena Mahony, born January 18, 1847. NB: Jeremiah's birthdate;

        26              v.       Florence Mahony, born Abt. 1849.  He married Kate Tobin.

        27             vi.       James Mahony, born April 20, 1851.  He married Nora Cronin.

        28            vii.       John (Rawlins) Mahony, born December 12, 1853.  He married Hannah Mahony.

        29           viii.       Kate Mahony, born January 6, 1856.  She married Denis Leary.

        30              ix.       Eileen Mahony, born December 7, 1858.  She married J. Lynch.

        31               x.       Bridget Mahony, born January 18, 1860.  She married N. Hegaarty.

        32              xi.       Timothy Mahony, born June 18, 1862.  He married Mary McCarthy.

        5.  Francis(Frank)² O'Mahony ((Francis)¹) was born Abt. 1820 in Co. Cork, Ireland, and died March 16, 1898 in Kilcrohane, Co. Cork.  He married Honora (Nonie) O'Brien.  She was born Abt. 1828 in Co. Cork, Ireland, and died Abt. 1906 in Kilcrohane, Co. Cork.

Notes for Francis(Frank) O'Mahony:

Known as Frank, he lived in the Townland of Glanalin, Parish of Kilcrohane.  He was the foreman of the copper mines on Bantry Bay.  Honora was born about 1828 and died about 1906.  Frank's daughter Mary signed the death record as being present at his death.

Children of Francis(Frank) O'Mahony and Honora O'Brien are:

        33               i.       Timothy³ Mahoney, born Abt. 1851 in Kilcrohane, Co. Cork; died 1935 in Denver, CO.  He married Margaret Mahony Abt. 1881; born in Co. Cork, Ireland; died Bef. 1930 in Denver, CO.

Notes for Timothy Mahoney:

Called "Denver Tim", he lived in Denver and owned a sheep ranch in Casper, Wyoming.  He immigrated to the U.S. in 1872

        34              ii.       Bartholomew Mahony, born in Kilcrohane, Co. Cork.

        35             iii.       Denis Mahony, born in Kilcrohane, Co. Cork.

        36             iv.       Thomas Mahony, born in Kilcrohane, Co. Cork.

        37              v.       Daniel Mahony, born in Kilcrohane, Co. Cork.

        38             vi.       Jeremiah Mahony, born September 11, 1860 in Kilcrohane, Co. Cork.

        39            vii.       Ellen Mahony, born in Kilcrohane, Co. Cork.  She married Daly (PARENTS OF TIM T. DALY, ARNOLD DALY'S FATHER,
  PER MARGIE ELLIS).

        40           viii.       Catherine Mahony, born January 24, 1868 in KIlcrohane, Co. Cork; died in Co. Cork, Ireland.  She married James Ellis.

        41              ix.       Mary Mahony, born in Kilcrohane, Co. Cork.  She married Big-Den Daly in Ireland; born in Ireland.

        42               x.       Julia Mahony, born May 23, 1873 in KIlcrohane, Co. Cork.  She married (1) Richard Tobin.  She married (2) Jeremiah Mahony.

        43              xi.       Norry (Nano) Mahony, born May 22, 1870 in KIlcrohane, Co. Cork.  She married Patrick Sullivan.

        44             xii.       Hanna Mahony, born in Kilcrohane, Co. Cork.  She married John Mahoney August 12, 1899.