New York Times Historical File Court schedules and newsworthy cases were reported in the The New York Times accessed here from 1851 – 5 years ago.e. This is a very good resource for determining which court and on what date a trial was heard, as well as additional information about news worthy crimes, investigations and court proceedings.

Lloyd Sealy Library Special Collections has an extensive collection of rare published pamplets reporting on proceedings of criminal trials, with an emphasis on NYC and NY State. Search CUNY+ [keyword subject: Trials and New York is suggested]

Notable 19th century trials heard in NY County are  reported in the NY City Hall Recorder which is available online and by appointment in the special collections room.

For additional records of the Court of General Sessions, New York County and other New York City Courts, please contact the Municipal Archives of New York. This repository also holds the grand jury indictment records for many trials in the John Jay Collection, accessible by our stenographer number in our index. There are more state court resources at the New York State Archives. There's also a collection of records relating to the Court of General Sessions of NY County at the NY State Archives .

Many federal trial transcripts are held by the National Archives (NARA), which has a branch in downtown New York City. New York City is in the Southern District of New York of U.S. District Court. The records of this court are available at NARA - NYC.

 New York State Court Libraries with Trial Transcript Holdings:

Some Kings County [Brooklyn] trial transcripts are held by the Kings County Supreme Court Library.

Some New York County trial transcripts are held by the NY County Supreme Court Library.

Some Bronx County trial transcripts may be held by the Bronx County Supreme Court Library (Bronx county was separated from NY County in 1914)

Some Queens County trial transcripts may be held by the Queens County Supreme Court Library.

Other NY State Court Libraries may also have trial transcript holdings.

It is advisable to call ahead and make an appointment with the above libraries before visiting.

see also: Guide to New York Court Records on Family Search.

Selected Individual Transcripts available digitally:

Rosenberg Grand Jury Transcripts (1950-51) at the Library of Congress

Lizzie Borden Murder Trial Transcript (Boston 1893)

Triangle Shirtwaist Factory Fire Trial Transcript (NYC 1911)

Nuremberg Trials Project, Harvard University (Nuremberg, Germany 1945-47)

Unofficial Transcripts of the O.J. Simpson Trials (1995 - 1997, Los Angeles)

Other Resources:

Trial Pamphlets, broadsides, and other publications guide

The Proceedings of London's Old Bailey Online

Salem Witch Trials Documentary Archive , University of Virginia

A useful blog post on finding  18th - 19th century trial transcripts online  in Blogging Pedagogy

In addition to our Trial Pamphlet Collection, the library holds a few trial transcripts outside of our Criminal Trial Transcripts collection

For early 19th century New York City & County trials see

Daniel Rogers, The New-York City-Hall Recorder for the year.... Which reported on interesting cases that took place at the New York Court of Sessions and other NYC courts from 1816 (volume I) to 1821 (volume VI). This publication is available digitally andoriginal copies of vol.3:no.11 (1818:Nov.) and  vol. 4 (1819)-v.6 (1821) are available by appointment in our special collections room KFX2005 .N47

There are also early NYC court records at the Municipal Archives

We have made other Trial Transcipts in our collections digitally available on the Internet Archive:

• The people of the state of New York, plaintiff-respondent against Ruth Snyder and Henry Judd Gray, defendants-appellants : case on appeal. (1927)

• The people of the state of New York, respondent, against William Byers, also known as William Snyder, impleaded, etc., defendant-appellant : record on appeal from Court of General Sessions, New York County. (1955) Open Special Collections KF224.B9 B9

Ethel and Julius Rosenberg Trial.

• Grand Jury Testimony (August 1950 through March 1951) is now digitally available from the U.S. National Archives.
• John Jay Library also has the United States. Congress. House. Committee on Un-American Activities Investigation of Communist activities (the Committee to Secure Justice in the Rosenberg Case and affiliates) Hearing (Aug. 2-5, 1955).

Alger Hiss Trial (1950, 1952)

• United States of America, appellee, against Alger Hiss, appellant: transcript of record, on appeal from the District Court of the United States for the Southern District of New York. (1950)
• United States of America, appellee, against Alger Hiss, appellant: petition for rehearing. (1950)
• Alger Hiss, petitioner against United States of America: petition for a writ of certiorari to the United States Court of Appeals for the Second Circuit. (1951)
• United States of America v. Alger Hiss, defendant: affidavit. (1952)
• United States of America against Alger Hiss, defendant: notice of hearing of motion for new trial: motion, affidavits. (1952)
• United States of America against Alger Hiss, defendant: supplemental affidavits in support of motion for new trial. (1952)
• United States of America, against Alger Hiss, defendant: second supplemental affidavit of Chester T. Lane in support of motion for new trial on ground of newly discovered evidence. (1952)
• United States of America against Alger Hiss, defendant: memorandum in support of defendant's motion for a new trial under Rule 33 on the ground of newly discovered evidence. (1952)
• United States of America, appellee, against Alger Hiss, appellant : appellant's brief on appeal from order denying motion for new trial. (1952)