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Interpreting the Evidence

Telegram Congratulating Oscar G. Rivera, 1937

  • Documents in this Activity:
  • Historical Eras:

    The Great Depression and WW II (1929 - 1945)

  • Thinking Skill:

    Historical Analysis & Interpretation

  • Grade Level:

    Upper Elementary
    Middle School
    High School
    College University

  • Topics:


  • Primary Source Types:

    Written Document

  • Regions:

    New York City
    New York State

  • Creator:

    NYS Archives Partnership Trust Education Team

  1. Load Telegram Congratulating Oscar G. Rivera, 1937 in Main Image Viewer

Suggested Teaching Instructions

Document Description
Telegram from the MacArthy family congratulating Oscar G. Rivera for his election to the New York State Assembly, November 2, 1937
Historical Context
Oscar García Rivera was the first Puerto Rican to be elected to public office in the continental United States.  In 1937, when he won a seat in the New York State Assembly representing the 17th District, its 20,000-strong Puerto Rican East Harlem community celebrated for days. When Mr. García Rivera was re-elected the following year in a coalition that included Vito Marcantonio, an activist representing East Harlem’s Italian immigrants in Congress, victory was even sweeter.

During the depths of the Depression, García Rivera ran for public office as a Republican, with the support of independent Democrats, labor unions, and liberal Republicans against the corrupt and racially biased Democratic political machine of Tammany Hall. Indeed, New York City had a tradition of “progressive” Republicanism opposed to Tammany Hall.  For example, Fiorello LaGuardia, the legendary mayor and reform Republican, also ran as the nominee of the American Labor Party, a militant union-oriented group that supported FDR for president from 1936 onward.

Oscar García Rivera was re-elected to successive terms in 1938 and 1939, serving a total of three years in the Assembly as part of the “City Fusion Party” under the auspices of reformist groups, including the American Labor Party.

Born in 1900 in Mayagüez just two years after Puerto Rico was acquired by the U.S. as a result of the Spanish-American War, Oscar García Rivera was the son of wealthy coffee plantation owners. At an early age, he demonstrated exceptional scholarship and leadership qualities. As an adult, García Rivera saw himself as a defender of the poor and an advocate for New York’s Puerto Rican community.

Among the first graduates of St. John's University School of Law, García Rivera emphasized issues of child labor, protective laws for workers, and anti-discrimination legislation. He helped organize the Postal Clerks' Union of America, encouraging Hispanic employees to push for higher wages and better working conditions. As an assemblyman, in 1939, the Assembly passed his Unemployment Insurance Bill. Subsequent bills sought to establish minimum hours and wages. In 1940, he served as a delegate to the National Republican Convention in Philadelphia and as executive secretary of the New York Puerto Rican Republican Association. In 1956, he achieved another first by becoming the first Puerto Rican to be nominated as the Republican candidate for Justice of the City Court.

Check for Understanding
Identify the purpose of the telegram and evaluate the significance of this document in encouraging civic participation by new immigrants.
Historical Challenges
Write a telegram that congratulates a famous historical figure (such as a president, an artist, an inventor, etc.) for having achieved something significant.
Make a Power Point presentation highlighting the life and career of Oscar García Rivera.
Interdisciplinary Connections
Science: Research the invention of the telegram. Create a poster about it. Over the years, what has replaced this means of communication?
English Language Arts: Write a telegram to congratulate a friend or relative for graduating from college or for succeeding in some other endeavor.