In 1919 in jazz, although 70 blacks were killed by white mobs, a monumenal step was made when he NAACP promoted the slogan "The new Negro has no fear", which helped the cause of jazz. The Original Dixieland Jazz Band visited England in 1919 and generated new interest in the new music. Swiss conductor Ernest Ansermet also delivered an accolade to Sidney Bechet in Revue Romande, considered the first serious article on jazz in history, and Bechet is lauded as a gifted musician by many classical European musicians.

In 1919 the popular standard "Baby Won't You Please Come Home" was published. Births in that year included Art Blakey and Nat King Cole.

The musicians listed below were American unless otherwise stated.

Wilbur C. Sweatman (Brunswick, Missouri, February 7, 1882 – New York City, March 9, 1961) was an African-American ragtime and dixieland jazz composer, bandleader, and clarinetist.

Sweatman started out playing violin, then took up clarinet instead. He toured with circus bands in the late 1890s, and briefly played with the bands of W.C. Handy and Mahara's Minstrels before organizing his own dance band in Minneapolis, Minnesota by late 1902. It was there that Sweatman made his first recordings on phonograph cylinders in 1903 for a local music store. These included what is reputed to have been the first recorded version of Scott Joplin's "Maple Leaf Rag"; no copies of these are known to exist today. In 1908, Sweatman moved to Chicago. He became the bandleader at the Grand Theater, and began to attract notice; a 1910 article referred to his nickname, "Sensational Swet."

By 1911, he had moved to the vaudeville circuit full-time, developing a successful act of playing three clarinets at once. An Indianapolis account described his performance there:

Marion Harris (April 4, 1896 — April 23, 1944) was an American popular singer, most successful in the 1920s. She was the first widely known white singer to sing jazz and blues songs.

Born Mary Ellen Harrison, probably in Indiana, she first played vaudeville and movie theaters in Chicago around 1914. Dancer Vernon Castle introduced her to the theater community in New York where she debuted in a 1915 Irving Berlin revue, Stop! Look! Listen!

In 1916, she began recording for Victor Records, singing a variety of songs, such as "Everybody's Crazy 'bout the Doggone Blues, But I'm Happy", "After You've Gone", "A Good Man Is Hard to Find" (later recorded by Bessie Smith), "When I Hear that Jazz Band Play" and her biggest success, "I Ain't Got Nobody".

In 1920, after the Victor label would not allow her to record W.C. Handy's "St. Louis Blues", she joined Columbia Records where she recorded the song successfully. Sometimes billed as "The Queen of the Blues," she tended to record blues- or jazz-flavored tunes throughout her career. Handy wrote of Harris that "she sang blues so well that people hearing her records sometimes thought that the singer was colored." Harris commented, "You usually do best what comes naturally, so I just naturally started singing Southern dialect songs and the modern blues songs."

Melvin Edward Alton “Turk” Murphy (born Palermo, California, December 16, 1915; died of bone cancer in San Francisco, California, May 30, 1987) was renowned as a trombonist who played traditional and dixieland jazz in San Francisco.

Murphy served in the Navy during World War II, during which time he played and recorded when he could, with the likes of Lu Watters and Bunk Johnson. In 1952, he headed his own band, "Turk Murphy's Jazz Band," which included pianist Wally Rose, clarinetist Bob Helm, banjo player Dick Lammi, and tubaist Bob Short. They played at the Italian Village at Columbus and Lombard, in San Francisco’s North Beach. The band appeared on The Ed Sullivan Show twice, in 1959 and 1965. In 1979, horn man Bob Schulz began an eight-year stint with the band. Other notable band members over the years included trumpeters Don Kinch, Bob Short, and Leon Oakley; pianists Pete Clute and Ray Skjelbred; and singer Pat Yankee.

Murphy was the singer for the 1971 Sesame Street cartoon shorts, "The Alligator King" and "#9 Martian Beauty" animated and produced by his long time friend, animator Bud Luckey. Murphy also arranged and performed on many of Bud Luckey's other Sesame Street animated Shorts. In addition to Luckey, Murphy was a long time friend of fellow trombonist and Disney animator Ward Kimball who created many memorable caricatures of Murphy and Charles Addams creator of The Addams Family.

Edward "Kid" Ory (December 25, 1886 – January 23, 1973) was a jazz trombonist and bandleader. He was born in Woodland Plantation near La Place, Louisiana.

Ory started playing music with home-made instruments in his childhood, and by his teens was leading a well-regarded band in Southeast Louisiana. He kept La Place, Louisiana, as his base of operations due to family obligations until his twenty-first birthday, when he moved his band to New Orleans, Louisiana. He was one of the most influential trombonists of early jazz.

Ory was a banjo player during his youth and it is said that his ability to play the banjo helped him develop "tailgate," a particular style of playing the trombone. In "tailgate" style the trombone plays a rhythmic line underneath the trumpets and cornets.

The house on Jackson Ave in the picture is where Buddy Bolden discovered Ory, playing his first New trombone, instead of the old civil war trombone. Unfortunately his sister said he was too young to play with Bolden.

He had one of the best-known bands in New Orleans in the 1910s, hiring many of the great jazz musicians of the city, including, cornetists Joe "King" Oliver, Mutt Carey, and Louis Armstrong; and clarinetists Johnny Dodds and Jimmie Noone.