East Harlem Moreno and de León settled in a
tenement building in the neighborhood of
East Harlem. East Harlem would eventually become known as "Spanish Harlem" due to a wave of
Puerto Rican migration beginning in the 1930s, but during the 1920s, it was a diverse neighborhood with significant
Black,
Eastern European Jewish,
Finnish,
Italian, and
Scandinavian populations. Moreno's daughter, Mytyl Lorraine, was born in November 1928. In order to support Mytyl and de León, who was unemployed, Moreno took a job at a garment
sweatshop. Moreno later identified an incident from this time period—the alleged death of a friend's baby, whose face was eaten by a rat—as the beginning of her "political awakening". Determined to change the material conditions of her fellow workers, Moreno joined the
Centro Obrero de Habla Española ( 'Spanish-speaking Workers' Center'), an influential
communist community organization. In 1930, Moreno joined the
Communist Party USA (CPUSA). That same year, she organized La Liga de Costureras ( 'The League of Seamstresses'), a small garment workers' union that consisted of her coworkers at the sweatshop and was affiliated with the
International Ladies Garment Workers Union (ILGWU). Uniquely for its time, the employed a "fraternal group", a male auxiliary tasked with generating publicity, raising funds, and procuring refreshments for the union. Also in 1930, Moreno participated in a protest against the murder of Gonzalo González, who was killed by police during a
picket he had organized against the film
Under a Texas Moon, which he believed contained
anti-Mexican themes. She later told Mexican-American labor and community activist
Bert Corona that González's murder and the subsequent protest "motivated her to work on behalf of unifying the Spanish-speaking communities". As of 1935, Moreno was working full-time as a union organizer for the ILGWU, but she had become disillusioned with the union's unwillingness to advocate for Latina workers. She had also befriended a
taxi driver named Gray Bemis, who attended political meetings with her and gave her rides. While she was attracted to Bemis, she did not act on her feelings because both she and Bemis were married. In late 1935, she left her husband and the CPUSA and accepted a position with the
American Federation of Labor (AFL), where she was tasked with organizing Black and Latino cigar workers in
Florida. She and Mytyl traveled to Florida by bus.
Florida . Moreno organized cigar workers throughout the state from 1936 to 1937. Moreno arrived in Florida in early 1936. At the time, the
Ku Klux Klan was known for employing terror tactics against labor activists there. Another labor activist and friend of Moreno's, Joseph Shoemaker, had been murdered by the Klan several months before her arrival. The AFL hoped that that Klan would not target Moreno because she was a light-skinned woman, and according to Moreno, the Klan never threatened her while she was in Florida, though a worker did attempt to kill her with an ice pick during a union meeting. It was in Florida that she assumed the professional name "Luisa Moreno". Historian
Vicki L. Ruiz theorizes that she adopted the name "Luisa" in reference to Puerto Rican labor organizer
Luisa Capetillo, who also organized cigar workers in Florida, and that she adopted the name "Moreno", which means "dark", to contrast with her given name, Blanca Rosa, which means "white rose". According to Ruiz, Moreno's close friends continued to call her "Rosa". Due to her busy schedule and her concerns about the Klan, Moreno left Mytyl with various informal foster families during their time in Florida. While some of these families treated Mytyl well, she later reported that one of her caretakers
sexually abused her without Moreno's knowledge. While in Florida, Moreno helped to negotiate a contract that covered 13,000 cigar workers across the state. However, AFL officials ultimately revised the contract to make it more favorable to management. As a result, Moreno advised the workers to reject the new contract. At a subsequent AFL convention held in
Tampa in 1936, Moreno was part of a delegation of organizers demanding adjustments to union members' dues, as well as the creation of an international union for food processing and agriculture. She also delivered a speech criticizing the earlier contract revisions and arguing that the union was not adequately serving
workers of color. While the AFL ignored Moreno's delegation's demands, the delegation ultimately went on to establish its envisioned union, the
United Cannery, Agricultural, Packing, and Allied Workers of America (UCAPAWA), on July 9, 1937, in
Denver, Colorado. Concerned that Moreno's involvement with the delegation would negatively impact their Florida operations, the AFL made plans to transfer her to Pennsylvania. Before she left Florida, Moreno helped to organize two significant demonstrations in
Ybor City. The first was a protest held on May 6, 1937, in support of the
Popular Front, a Spanish
electoral alliance consisting of a variety of
left-wing organizations that had triumphed in the
1936 Spanish general election. Participants in the march included female cigar workers and garment workers employed by the
Works Progress Administration (WPA), who engaged in a city-wide march towards city hall where they presented their demands for solidarity with the Popular Front to the mayor. The second was a
strike action staged on July 8 by WPA garment workers, who demanded the reinstatement of 88 women who had been fired in order to limit the impact of a possible strike, as well as a 20% wage increase. Although the strike initially included both white and Latina women, the white workers, unused to labor actions and worried about the potential repercussions for themselves and their families, returned to work after the first day. Weakened by the white women's return to work, the strike ended on July 14 without achieving its demands.
Texas Per her reassignment, Moreno briefly moved to
Pennsylvania, where she continued to organize cigar workers. However, she resigned from the AFL in 1937 and joined the UCAPAWA, who assigned her to help organize a
pecan shellers strike in
San Antonio, Texas. The strike had begun on January 31, 1938, with 6,000–8,000 workers, primarily Mexican, walking out to protest a proposed pay cut, poor working conditions, and the practice of "home work", in which shelling tasks were contracted to families working from home for extremely low wages.
Emma Tenayuca had been elected honorary strike leader, but when Moreno arrived, Tenayuca reluctantly granted her authority to manage the situation as she saw fit. While she initially faced distrust from local workers, who viewed her as an outsider because she was not Mexican or from Texas, Moreno was ultimately able to negotiate a settlement that included restructured
piece-rate scales that increased workers' overall wages, as well as recognition of the UCAPAWA
local. However, historian Zaragosa Vargas notes that the shelling companies did not honor the promised wage increase, instead implementing
mechanization techniques that displaced thousands of shellers. After the strike, Moreno traveled throughout the
Lower Rio Grande Valley organizing Mexican
migrant workers.
El Congreso de Pueblos de Habla Española Due to the financial strain of managing farm labor campaigns in Texas and California, the UCAPAWA shifted its organizing efforts to cannery and packinghouse workers. As a result, Moreno was pulled from her organizing work in Texas, but before her next assignment, she asked for a
leave of absence to organize a conference for Latino
civil rights. Leaving Mytyl at a
boarding house in San Antonio, she traveled to
Los Angeles, California, where the conference—which was called
El Congreso de Pueblos de Habla Española ( "The Spanish-Speaking Peoples' Congress")—was held from April 28–30, 1939. According to Ruiz, it was the first national Latino civil rights conference ever held. The conference was attended by 1,000 to 1,500 delegates, representing over 120 organizations, mostly from California and the
Southwestern United States. Significant attendees included Bert Corona and
Josefina Fierro de Bright. The platform developed by the congress demanded an end to segregation in education, employment, housing, public facilities, and distribution of public assistance. It also affirmed immigrants' rights to live and work in the United States without fear of
deportation, encouraged the preservation of Latino cultures over
assimilation into the United States, recommended the establishment of
Latino studies departments within universities, and identified the "
double discrimination" faced by Mexican women as part of its "woman's platform". After the congress, Moreno was briefly assigned to Colorado, organizing a labor school for beet farmers in Denver.
California . Moreno organized cannery workers throughout the state during the 1940s. According to historians Carlos M. Larralde and Richard Griswold del Castillo, Moreno moved to Los Angeles in 1940 to work on
Noticias de UCAPAWA ( 'UCAPAWA News'), the UCAPAWA's Spanish-language newspaper. However, according to Ruiz, she edited
Noticias de UCAPAWA in
Washington, D.C., moving to Los Angeles with Mytyl after she was elected vice president of the UCAPAWA in 1941. Both sources agree that she moved to Los Angeles at some point in order to organize cannery workers, becoming known as the "California Whirlwind". She organized union drives for workers at the California Sanitary Canning Company (Cal San) and California Walnut, which led to the creation of Local 3, the second-largest UCAPAWA local in the United States. Moreno also helped to expand the UCAPAWA's influence throughout
Southern California, including to
Fullerton,
Riverside,
Redlands,
Santa Ana,
San Diego, and the
San Joaquin Valley. In San Diego, she organized workers with several companies, including the California Packing Corporation, the Marine Products Company, the Old Mission Packing Corporation, Van Camp Sea Food Company, and Westgate Sea Products. Meanwhile, in Fullerton, she campaigned on behalf of the UCAPAWA during a 1942
National Labor Relations Board (NLRB)
election at Val Vita, the largest cannery in the state. During this election, Val Vita employees voted to determine whether they would be represented by the UCAPAWA, the AFL, a company union, or no union at all. Under Moreno's guidance, the UCAPAWA achieved a decisive victory, leading to higher wages, better working conditions, and an on-site
daycare at the cannery, which was financed by management. Moreno also advocated for racially integrated hiring at Cal San, which resulted in an agreement by the owners to hire Black women in 1942. Also in 1942, Moreno became involved in the
Sleepy Lagoon murder trial, which concerned the death of a man named José Díaz near
El Monte, California. The murder sparked widespread panic regarding the potential involvement of
pachuco gangs, which led to the arrests of 300 young
Chicano men, of whom 12 were convicted of murder and 5 were convicted of assault. Moreno and Bert Corona formed the Sleepy Lagoon Defense Committee, arguing that the convictions were racially motivated. . Moreno was part of a defense committee advocating for the victims of the riots, who were targeted by members of the
United States Armed Forces. On June 3, 1943, the
Zoot Suit Riots broke out in Los Angeles when 50 members of the
United States Armed Forces traveled across Los Angeles in search of pachucos, attacking several young men in front of the Carmen Theater and on
Main Street. The violence escalated in the ensuing days, with 200 military personnel injuring over 150 Latinos. Local media characterized the riots as a "war" between pachucos and military personnel, and police arrested over 500 Latinos, allegedly for disorderly conduct. Moreno and Corona formed another defense committee to advocate for the arrestees. Working alongside personnel from the Mexican consulate and the UCAPAWA, as well as San Diego Councilor
Charles Dail, Moreno began investigating the military's conduct during the riots, concluding that: While investigating the Zoot Suit Riots, Moreno continued to engage in labor activism in the El Monte region. In addition to becoming a leading figure in a local walnut growers' union, she also served on the California state council of the
Congress of Industrial Organizations (CIO), making her the first Latina to serve on a CIO state council. In 1944, the UCAPAWA changed its name to the
Food, Tobacco, Agricultural, and Allied Workers (FTA), and in 1945, Moreno led a campaign to affiliate several locals—which the AFL had turned over to the
International Brotherhood of Teamsters—with the newly renamed union. The FTA established 25 locals in
Northern California and won an election to represent 72 plants in October 1945. However, the Teamsters challenged the election results, lobbying the NLRB to rescind them and initiating a blockade against FTA-affiliated canneries. As a result, in February 1946, the NLRB called a second election to be held. In the leadup to the election, the Teamsters influenced workers to vote for them through a combination of intimidation, physical force,
red-baiting, and
sweetheart deals. The FTA lost the second election, and in 1947, Moreno retired from public activity and married Gray Bemis following their reunion at a CIO dance in
San Francisco. ==Later life==