Note: This is just one of 1,325 family groupings listed on The Political Graveyard web site. These families each have three or more politician members, all linked together by blood, marriage or adoption.

These groupings — even the names of the groupings, and the areas of main activity — are the result of a computer algorithm working with the data I have, not the choices of any historian or genealogist.

	James J. Byrne (1863-1930) — of Brooklyn, Kings County, N.Y. Born in Brooklyn, Kings County, N.Y., April 8, 1863. Democrat. Member of New York state assembly from Kings County 9th District, 1905; borough president of Brooklyn, New York, 1926-30; died in office 1930. Catholic. Irish ancestry. Member, Elks; Knights of Columbus. Died, from gallstones, in Brooklyn Hospital, Brooklyn, Kings County, N.Y., March 14, 1930 (age 66 years, 340 days). Interment at Holy Cross Cemetery, Brooklyn, N.Y.   Relatives: Son of Richard Byrne and Bridget (Lawrey) Byrne; married 1906 to May A. Sesnon (sister-in-law of John Henry McCooey); uncle by marriage of John Henry McCooey Jr..   Political family: McCooey-Ambro family of Brooklyn, New York.
	John Henry McCooey (1864-1934) — also known as John H. McCooey; "Tammany's Uncle John" — of Brooklyn, Kings County, N.Y. Born in New York, New York County, N.Y., June 18, 1864. Democrat. Shipyard worker; candidate for borough president of Brooklyn, New York, 1909; chair of Kings County Democratic Party, 1910-34; delegate to Democratic National Convention from New York, 1912, 1916, 1920, 1924, 1928, 1932; Democratic Presidential Elector for New York, 1913 (voted for Woodrow Wilson and Thomas R. Marshall); member of New York Democratic State Committee, 1930; Democratic Presidential Elector for New York, 1933; member of Democratic National Committee from New York, 1933-34; delegate to New York convention to ratify 21st amendment, 1933. Catholic. Irish ancestry. Died, of myocarditis, in Brooklyn, Kings County, N.Y., January 21, 1934 (age 69 years, 217 days). Interment at Holy Cross Cemetery, Brooklyn, N.Y.   Relatives: Son of John H. McCooey and Anna (Hanlon) McCooey; brother of Anna McCooey (who married Edward J. Dowling); married, January 17, 1899, to Catharine I. Sesnon (sister-in-law of James J. Byrne); father of John Henry McCooey Jr..   Political family: McCooey-Ambro family of Brooklyn, New York.
	Edward J. Dowling (b. 1875) — of Manhattan, New York County, N.Y. Born in New York, New York County, N.Y., December 8, 1875. Democrat. Lawyer; delegate to Democratic National Convention from New York, 1916; member of New York state senate 19th District, 1917-20; defeated, 1920; pleaded guilty in 1934 for embezzling $20,000 in Liberty bonds from an estate he represented as attorney; made restitution, resigned his law license, and received a suspended sentence. Burial location unknown.   Relatives: Son of Edward J. Dowling and Mary (Gillespie) Dowling; married, June 27, 1906, to Anna McCooey (sister of John Henry McCooey); married, February 7, 1924, to Clara G. Brady.   Political family: McCooey-Ambro family of Brooklyn, New York.   See also Wikipedia article   Image source: New York Red Book 1917
	Jerome G. Ambro (1897-1979) — of Brooklyn, Kings County, N.Y.; Forest Hills, Queens, Queens County, N.Y. Born in Brooklyn, Kings County, N.Y., December 25, 1897. Democrat. Served in the U.S. Army during World War I; lawyer; member of New York state assembly from Kings County 19th District, 1925-33; defeated in primary, 1937; candidate for mayor of New York City, N.Y., 1933; candidate for U.S. Representative from New York 3rd District, 1936; candidate for New York state senate 10th District, 1960. Catholic. Italian ancestry. Died in Huntington Station, Suffolk County, Long Island, N.Y., March 17, 1979 (age 81 years, 82 days). Burial location unknown.   Relatives: Son of Antony Ambro and Providenzia Ambro; father of Jerome Anthony Ambro Jr..   Political family: McCooey-Ambro family of Brooklyn, New York.   See also OurCampaigns candidate detail
	John Henry McCooey Jr. (1899-1948) — also known as John H. McCooey, Jr. — of Brooklyn, Kings County, N.Y. Born in Brooklyn, Kings County, N.Y., December 7, 1899. Democrat. Served in the U.S. Navy during World War I; Justice of New York Supreme Court 2nd District, 1932-48; died in office 1948. Died in Brooklyn, Kings County, N.Y., June 23, 1948 (age 48 years, 199 days). Interment at Holy Cross Cemetery, Brooklyn, N.Y.   Relatives: Son of John Henry McCooey; married to Helen Cornell; father of Helen McCooey (who married Jerome Anthony Ambro Jr.); nephew by marriage of James J. Byrne.   Political family: McCooey-Ambro family of Brooklyn, New York.
	Jerome Anthony Ambro Jr. (1928-1993) — also known as Jerome A. Ambro, Jr. — of Huntington Station, Suffolk County, Long Island, N.Y. Born in Brooklyn, Kings County, N.Y., June 27, 1928. Democrat. Served in the U.S. Army during the Korean conflict; Huntington town supervisor; member, Suffolk County Board of Supervisors; candidate for Lieutenant Governor of New York, 1970; U.S. Representative from New York 3rd District, 1975-81; defeated, 1980. Died, from diabetes, in a hospital at Falls Church, Va., March 4, 1993 (age 64 years, 250 days). Interment at Arlington National Cemetery, Arlington, Va.   Relatives: Son of Jerome G. Ambro; married, June 11, 1955, to Helen McCooey (daughter of John Henry McCooey Jr.); married to Antoinette Salatto.   Political family: McCooey-Ambro family of Brooklyn, New York.   See also congressional biography — Govtrack.us page — Wikipedia article — Find-A-Grave memorial — OurCampaigns candidate detail