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Lee Lorch

Lee Lorch is a mathematics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Lee Lorch rather than just read about it. In short: Lee Alexander Lorch (September 20, 1915 – February 28, 2014) was an American mathematician, and early civil rights activist. His leadership in the campaign to desegregate Stuyvesant Town, a large housing development on the East Side of Manhattan, helped eventually to make housing discrimination illegal in the United States but also resulted in Lorch losing his own job twice.

Lee Lorch — main illustration
Lee Lorch — illustration

Key takeaways

  • Lee Lorch belongs to mathematics; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Lee Lorch to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Lee Lorch from memory before moving on to harder problems.

Reference excerpt

Lee Alexander Lorch (September 20, 1915 – February 28, 2014) was an American mathematician, and early civil rights activist. His leadership in the campaign to desegregate Stuyvesant Town, a large housing development on the East Side of Manhattan, helped eventually to make housing discrimination illegal in the United States but also resulted in Lorch losing his own job twice. He and his family then moved to the Southern United States where he and his wife, Grace Lorch, became involved in the civil rights movement there while also teaching at several Black colleges. He encouraged black students to pursue studies in mathematics and mentored several of the first black men and women to earn PhDs in mathematics in the United States. After moving to Canada as a result of McCarthyism, he ended his career as professor emeritus of mathematics at York University in Toronto, Ontario.

Background He was born in New York City to Adolph Lorch and Florence Mayer Lorch. He graduated from Cornell University in 1935 and obtained his PhD in mathematics from the University of Cincinnati in 1941. He did mathematics-related work for the war effort in a "draft exempt" job but quit in 1943 to enlist in the United States Army. He saw service in India and the Pacific Theater of World War II before being demobilized in 1946. Lorch obtained a teaching position at the City College of New York following the war but was soon fired because of his civil rights work on behalf of African Americans.

Stuyvesant Town "I had become very aware of racism through the war; not just anti-Semitism, but the way the American army treated black soldiers. On the troop transport overseas, it was always the black company on board that had to clean the ship and do the dirty work, and I felt very uncomfortable with that," Lorch told an interviewer in 2007. Some time after taking up his job at City College, he moved into Stuyvesant Town, a development owned by the Metropolitan Life Insurance Company built with financial and legal support from New York City for war veterans. Outraged at the development's "No Negroes" policy, Lorch became a vice-chair of a tenants' committee formed to eliminate this discrimination. This had two-thirds support from the other tenants. City College, though conceding the excellence of his work, dismissed Lorch, refusing to give any reason. Lorch obtained a new position at Pennsylvania State University, but rather than give up his apartment he asked a black friend and his family to move into his dwelling as "guests", a move which circumvented the policy against accepting housing applications from blacks, but which also resulted in his being fired from Penn State, as reported in The New York Times on April 10, 1950. An editorial in the Times the following day (April 11) called on Penn State to reconsider, recalling the suspicious nature of his dismissal from City College the previous year, to no avail. "It's hard to imagine now, but there was no civil rights legislation back then. You could be fired without explanation. But how could you do anything else, in all good conscience?" said Lorch in 2007.

Moving South After being fired by Penn State, Lorch obtained a teaching position at Fisk University, a black college located in Tennessee, in 1950. In 1951 there was a south-eastern sectional meeting of the Mathematical Association of America in Nashville. The citation delivered at the 2007 MAA awards presentation, where Lorch received a standing ovation, recorded that:

Lee Lorch, the chair of the mathematics department at Fisk University, and three Black colleagues, Evelyn Boyd (now Granville), Walter Brown, and H. M. Holloway came to the meeting and were able to attend the scientific sessions. However, the organizer for the closing banquet refused to honor the reservations of these four mathematicians. (Letters in Science, August 10, 1951, pp. 161–162 spell out the details). Lorch and his colleagues wrote to the governing bodies of the AMS and MAA seeking bylaws against discrimination. Bylaws were not changed, but non-discriminatory policies were established and have been strictly observed since then.

House Un-American Activities Committee In 1955, Lorch was called before the House Un-American Activities Committee after he and his wife, Grace, attempted to enroll their daughter, Alice, in an all-black elementary school after the United States Supreme Court ruled in Brown v. Board of Education that school segregation was unconstitutional. The Committee's questioning immediately went in a political direction: though Lorch "pointedly denied" engaging in any Communist activity during his tenure at Fisk, he refused to answer questions about his party membership prior to 1941, citing the right to do so under the First Amendment to the United States Constitution, and never made use of the Fifth Amendment. His refusal to testify before HUAC resulted in his being indicted, tried and acquitted for contempt of Congress–nevertheless, during the House of Un-American Activities Committee hearing Fisk University's president, Charles S. Johnson, issued a statement that Lorch's position before the HUAC was "for all practical purposes tantamount to admission of membership in the Communist Party." Despite the appeals on Lorch's behalf from 48 out of 70 staff members, 22 student body leaders, and 150 alumni, Fisk ended his contract.

Little Rock Nine In 1957, Lorch was working as chair of the Mathematics Department at Philander Smith College, a small black college in Little Rock, Arkansas. That year, he and his wife, Grace, helped escort the Little Rock Nine, nine high school students attempting to be the first black students to enroll at Little Rock Central High School against white segregationist opposition that was so ferocious his wife helped protect a 15-year-old black girl, Elizabeth Eckford, from a mob. Faced with threats and sticks of dynamite left in their garage and with the school's funding at risk, Lorch resigned and was again forced to look for new employment.

… excerpt ends here. Continue reading the full article.

Illustrations

Lee Lorch: Lee Lorch, 1995
Lee Lorch, 1995

Worked examples

Example 1 — a first encounter with Lee Lorch

Start with the simplest possible case. Write down what Lee Lorch claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In mathematics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Lee Lorch before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Lee Lorch ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Lee Lorch

In research
Lee Lorch appears in mathematics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Lee Lorch in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Lee Lorch is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1915 births, 2014 deaths, 20th-century American Jews, so understanding it makes those chapters shorter.
In everyday life
Look for Lee Lorch outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Lee Lorch in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Lee Lorch means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Lee Lorch out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Lee Lorch in simple terms?

Lee Alexander Lorch (September 20, 1915 – February 28, 2014) was an American mathematician, and early civil rights activist. His leadership in the campaign to desegregate Stuyvesant Town, a large housing development on the East Side of Manhattan, helped eventually to make housing discrimination ill…

Why does Lee Lorch matter?

Because it connects several mathematics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Lee Lorch?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Lee Lorch.

Tags

  • 1915 births
  • 2014 deaths
  • 20th-century American Jews
  • 20th-century American mathematicians
  • 21st-century American Jews
  • 21st-century American mathematicians
  • Academic staff of York University
  • Activists for African-American civil rights
  • American communists
  • Canadian anti-war activists
  • Canadian mathematicians
  • Cornell University alumni

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