Roberts was born on September 14, 1879, in Chillicothe, Ohio, the son of Andrew Jackson Roberts (1852–1927), a graduate of Oberlin College, and Ellen Wayles Hemings (1856–1940), the daughter of Madison Hemings and Mary Hughes McCoy, a free woman of color. Ellen was 5'10" with blue eyes, and the granddaughter of Sally Hemings and Thomas Jefferson. When the Jefferson biographer Fawn Brodie saw a family photo of Ellen, she said that she could see the strong resemblance to Jefferson.^[1] A. J. Roberts was a businessman.^[2]

When Frederick was six, his family moved in 1885 to Los Angeles, where his father established the first black-owned mortuary in the city. The Robertses had a second son, William Giles Roberts. They and their descendants became prominent in the Los Angeles area, with a strong tradition of college education and working in public service.^[1] Frederick Roberts attended Los Angeles High School and became its first known graduate of African-American descent.

Roberts began college at the University of Southern California (USC) where he majored in pre-law. He continued at Colorado College, from which he graduated. He also attended the Barnes-Worsham School of Embalming and Mortuary Science.

In 1908, Roberts started editing the Colorado Springs Light newspaper. While in Colorado, he also served as deputy assessor for El Paso County. He went to Mound Bayou, Mississippi, where he served some years as principal of Mound Bayou Normal and Industrial Institute, one of a number of schools founded for African Americans in the segregated state system.^[3]

In 1912, Roberts returned to Los Angeles, where he founded The New Age Dispatch newspaper (later called New Age), which he edited until 1948.^[1] When he partnered with his father in the mortuary business, they named it A.J. Roberts & Son. Eventually he took it over.^[3]

Roberts, a newspaper editor and business owner, emerged as a prominent figure in the burgeoning African-American community of Los Angeles. During the 20th century, he witnessed the influx of people migrating from the South to various Northern, Midwestern, and Western states, known as the Great Migration. Additionally, Roberts actively participated in the Methodist church and held memberships in two influential organizations, the National Association for the Advancement of Colored People (NAACP) and the Urban League. These associations, established in the early 20th century, aimed to advocate for the political and civil rights of black people.^[4]

In 1921, Roberts married Pearl Hinds, who had studied at the Boston Conservatory of Music. They had two daughters: Gloria, who became a professional classical pianist, and Patricia, who lived in Los Angeles.^[1]

In 1918, Roberts was elected to the California State Assembly from the 62nd District as a Republican in a hard-fought campaign, during which his chief rival made racial slurs against him.^[4] While in office, Roberts sponsored legislation to establish the University of California at Los Angeles and improve public education, and proposed several civil rights and anti-lynching measures.^[3] In June 1922, he welcomed Black Nationalist leader Marcus Garvey of the UNIA to Los Angeles and rode in his parade car.^[1]

Roberts was re-elected repeatedly and served a continuous total of 16 years, becoming known as the "dean of the assembly." He was a friend of Earl Warren, governor of California who became Chief Justice of the United States.^[1] In the 1934 mid-term elections, after the election of Democrat Franklin Delano Roosevelt as president two years previously in the midst of the Great Depression, Roberts was defeated by a Democratic African-American candidate, Augustus F. Hawkins. Following his 1934 California State Assembly defeat, Roberts ran unsuccessfully for the United States House of Representatives on two occasions.

Beginning in the late 1930s and the early 1940s, the second wave of the Great Migration brought tens of thousands of African Americans from the Southern United States to the Los Angeles area for jobs in the growing defense industries. In 1946, Roberts campaigned for the 14th Congressional District against incumbent Helen Gahagan Douglas, but she kept her seat.^[4] A few years later, Douglas lost a hotly contested U.S. Senate race to Republican Richard M. Nixon.

On the evening of July 18, 1952, a few days after attending the 1952 Republican National Convention, Roberts sustained serious injuries when the car he was driving was struck by another vehicle near his Los Angeles home.^[5] He died the following afternoon at Los Angeles County General Hospital. Roberts is interred at Evergreen Cemetery.^[4] He was survived by his wife and two daughters.

• 1957 - The city of Los Angeles dedicated Frederick M. Roberts Park, 4700 Honduras St., in his memory.
• February 25, 2002 - The California State Senate honored Frederick Madison Roberts for his contributions and service to the State of California, with a unanimous vote for Senate Resolution 26, authored by Senator Ray Haynes (R-Riverside).
• February 2006, Mervyn M. Dymally of the California State Legislature featured the biography of Frederick M. Roberts on his website to honor early political leaders as part of Black History Month.^[6]

• List of African-American officeholders (1900–1959)

• California Legislative Black Caucus
• Frederick Madison Roberts at Find a Grave
• Join California Frederick M. Roberts

• Delilah L. Beasley, Negro Trail Blazers of California, Los Angeles: 1919, pp. 137, 215–16. (An early picture of Roberts appears on p. 40.)
• Fawn M. Brodie, Thomas Jefferson: An Intimate History, New York: W.W. Norton & Co., 1974
• Annette Gordon-Reed, Thomas Jefferson and Sally Hemings: An American Controversy, Charlottesville: University of Virginia Press, 1998
• Annette Gordon-Reed, The Hemingses of Monticello: An American Family, New York: W.W. Norton & Co., 2008
• Shannon Lanier and Jane Feldman, Jefferson's Children: The Story of One American Family New York: Random House Books for Young Readers, 2000 (with photos of Jefferson descendants on both sides)