[5] Throughout the 1950s and 1960s Hall became a popular choice of photographer for gala events held in Los Angeles' most expensive neighborhoods, some of which he would have been barred from purchasing a home in.
[8][9] Hall worked at the Los Angeles Sentinel, one of the oldest and most influential African-American newspapers in the Western United States, and served as that paper's chief photographer for twenty-seven years.
[10] Jessie Mae Brown Beavers, executive editor for the Sentinel, assigned Hall to photograph the annual "Los Angeles Best Dressed" celebration, which became one of the paper's most popular features.
[5] In 1958 he established the Halmont Graphics studio in partnership with cofounder Lamonte McLemore, who was also an original member of The 5th Dimension singing group.
[7]Hall began development of a sports car, later named the Corwin Getaway, shortly after the Watts Riots of 1965, and the prototype was completed in 1969.
[6] While the project received support from a number of celebrities, Hall was unable to secure financing to put the Getaway into production.
Working with designer Dennis Huguley, he conceived of a narrow, two-passenger, three-wheeled "Magic Machine" that combined a motorcycle riding position with the look of an aircraft canopy and a hybrid gas/electric powertrain.