Question: When does a speaker of The State of the Black Union born who is the U.S. Representative for 's 13th congressional district? 

Context paragraphs:
Frederick R. Lehlbach: Frederick Reimold Lehlbach (January 31, 1876 – August 4, 1937) was an American lawyer and politician.  As a Republican, Lehlbach served as the U.S. Representative for New Jersey's 10th congressional district from 1915 to 1933 and as the representative from New Jersey's 12th congressional district from 1933 to 1937.  Lehlbach was also the nephew of Herman Lehlbach, a former U.S. Representative from New Jersey's 6th congressional district who served from 1885 to 1891.

Barbara Lee: Barbara Jean Lee (born July 16, 1946) is the U.S. Representative for California 's 13th congressional district , serving East Bay voters from 1998 to 2013 during a time when the region was designated California 's 9 congressional district .  She is a member of the Democratic Party.  She was the first woman to represent the 9th district and is also the first woman to represent the 13th district.  Lee was the Chair of the Congressional Black Caucus and was the Co-Chair of the Congressional Progressive Caucus.  Lee is notable as the only member of either house of Congress to vote against the authorization of use of force following the September 11, 2001 attacks.  This made her a hero among many in the anti-war movement.  Lee has been a vocal critic of the war in Iraq and supports legislation creating a Department of Peace.

Steve Stockman: Stephen Ernest "Steve" Stockman (born November 14, 1956) is an American politician and member of the Republican Party.  He served as the U.S. Representative for Texas's 9th congressional district from 1995 to 1997 and for Texas's 36th congressional district from 2013 to 2015.  Stockman ran in the 2014 election for the United States Senate but lost the Republican primary to incumbent Senator John Cornyn.

Hansen Clarke: Hansen Clarke (born March 2, 1957) is an American politician and former U.S. Congressman and Representative-elect in the 14th Congressional District of Michigan.  A Democrat, he was the U.S. Representative for Michigan 's 13th congressional district from 2011 to 2013.  Prior to his election to Congress, he had been a member of the Michigan House of Representatives from 1991 through 1992 and from 1999 through 2002, and had represented the 1st District in the Michigan Senate from 2003 to 2011.  Clarke was also the first U.S. Congressman of Bangladeshi descent.

Bill Foster (politician): George William Foster (born October 7, 1955) is an American physicist, businessman and U.S. Representative for  's 11th congressional district , winning the seat in 2012.  He was previously the U.S. Representative for  's 14 congressional district from 2008 to 2011.  He is a member of the Democratic Party.

Adam Kinzinger: Adam Daniel Kinzinger (born February 27, 1978) is the U.S. Representative for Illinois 's 16 congressional district .  He is a member of the Republican Party.  He was first elected to Congress in 2010, winning election to represent Illinois's 11th congressional district.  After redistricting, he was re-elected to Congress in 2012, 2014, and 2016 to represent Illinois's 16th congressional district.

Rick Nolan: Richard Michael Nolan (born December 17, 1943) is an American politician and member of the Minnesota Democratic–Farmer–Labor Party who has been the U.S. Representative for Minnesota's 8th congressional district since 2013 and previously served as the U.S. Representative for Minnesota's 6th congressional district from 1975 to 1981.

State of the Black Union: The State of the Black Union was an annual event in the United States to consider issues of particular relevance in the African American community, featuring prominent speakers such as John Conyers, Jesse Jackson, and Al Sharpton.

Ohio's 13th congressional district: The 13th congressional district of Ohio is represented by Representative Tim Ryan, who defeated Republican Dr. Marisha Agana of Warren on November 6, 2012.  Due to reapportionment following the 2010 United States Census, Ohio lost its 17th and 18th congressional districts, necessitating redrawing of district lines.  Following the 2012 elections, the 13th district changed to take in much of the territory in the current 17th district, including the city of Youngstown and areas east of Akron.

John Conyers: John James Conyers Jr. (born May 16, 1929) is an American Democratic politician and the U.S. Representative for  's 13th congressional district .  The district includes the western half of Detroit, as well as River Rouge, Ecorse, Redford Township, Dearborn Heights, Highland Park, Westland, Garden City, Inkster, Wayne, and Romulus.  As the longest-serving active Representative, he is the Dean of the House of Representatives.

Supporting paragraphs: State of the Black Union John Conyers
Answer: May 16, 1929