LARRY'S O'BRIEN FAMILY

Dennis A. O'Brien	Mary Ann (nee Hayes) O'Brien
Born: About May 1840 - Co. Cork, Ire. Married: Died: Nov. 21, 1926 - Potsdam, NY, USA Mother: Father:	Born: Oct. 30, 1849 = Norfolk, NY, USA Married: Died: Mar. 30, 1945 - Canton, NY, USA Mother: Father:

Intro
There was a married couple named Dennis O'Brien and Mary Ann (nee Hayes) O'Brien, living in the U.S. state of New York, in the latter half of the 1800s and into the early part of the 20th century. Dennis and Mary Ann (nee Hayes) O'Brien are relevant to my family research effort as both of their descendants, Ann (nee O'Brien) Valentine, and Ann's daughter, Mary Valentine, each have a DNA match to me.

Offspring
Dennis and Mary Ann (nee Hayes) O'Brien had xxx children that I am aware of. I have listed those children in the table below. To browse any of the additional info I have obtained and posted to the internet for any of Dennis and Mary Ann (nee Hayes) O'brien's children, click on the links in the table.

Children of Dennis and Mary Ann (nee Hayes) O'Brien

Child's Name Born Birth Loc Other Info

Michael Henry O'Brien About 1873 Canton, NY, USA 1st Married Rose I. Dyer, Jul. 10, 1907, Brooklyn, NY, USA
2nd Married Miriam T. Hinchcliffe, Aug. 3, 1932, Manhatten, NY, USA

Mary Theresa O'Brien About 1874 Potsdam, NY, USA Married Andrew Francis Tiernan

Dennis O'Brien About 1875 NY, USA

James O'Brien About Dec. 1882 NY, USA

Daniel J. O'Brien About Jun. 1884 NY, USA

Anna K. O'Brien About Dec. 1886 NY, USA Married John C, Hughes, Feb. 19, 1917, Madrid, NY, USA

William F. O'Brien About Oct. 1887 NY, USA Married Clara M. Maid, Jan. 28, 1914, Rochester, NY, USA

Celia O'Brien About Feb. 1892 NY, USA Married Clarence T. Murphy, Oct. 7, 1914, Madrid, NY, USA

Child's Name	Born	Birth Loc	Other Info
Michael Henry O'Brien	About 1873	Canton, NY, USA	1st Married Rose I. Dyer, Jul. 10, 1907, Brooklyn, NY, USA 2nd Married Miriam T. Hinchcliffe, Aug. 3, 1932, Manhatten, NY, USA
Mary Theresa O'Brien	About 1874	Potsdam, NY, USA	Married Andrew Francis Tiernan
Dennis O'Brien	About 1875	NY, USA
James O'Brien	About Dec. 1882	NY, USA
Daniel J. O'Brien	About Jun. 1884	NY, USA
Anna K. O'Brien	About Dec. 1886	NY, USA	Married John C, Hughes, Feb. 19, 1917, Madrid, NY, USA
William F. O'Brien	About Oct. 1887	NY, USA	Married Clara M. Maid, Jan. 28, 1914, Rochester, NY, USA
Celia O'Brien	About Feb. 1892	NY, USA	Married Clarence T. Murphy, Oct. 7, 1914, Madrid, NY, USA

U.S. Federal Census Records
Dennis and Mary Ann (nee Hayes) O'Brien, and their family, are listed in the 1880 through 1910 U.S Federal Census records in the state of New York. The Dennis and Mary Ann (nee Hayes) O'Brien family was listed in the town of Canton, NY in the 1880 census, and in the town of Potsdam, NY in the both 1900 and 1910 census. I have obtained copies of each of those Dennis and Mary Ann (nee Hayes) O'Brien, and family, census records. You may access my O'Brien and Related Families U.S. Federal Census Selector Page by clicking here.

O'Brien Family Death Info
Dennis O'Brien, husband of Mary Ann (nee Hayes) O'Brien, died November 21, 1926, in Potsdam, NY, USA. I have obtained a copy of the 1926 New York Death Index Register page listing Dennis O'Brien. To view a copy of the Dennis O'brien 1926 New York Death Index Register entry I have obtained, click here. Dennis O'Brien was buried in Saint John the Baptist Cemetery, in Madrid, NY, USA. A Find-A-Grave memorial has been created for Dennis O'Brien. To view the Dennis O'Brien Find-A-Grave memorial that has been created, click here.

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Larry's O'Brien Family Connections
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Larry's Genealogy Page