## Judge Rockwell’s Instruction and Its Limits
When Judge William Rockwell instructed the Brooklyn jury in February 1855, he articulated a legal principle that was significant and that was also, in several ways, limited by the assumptions of its time.
His instruction that colored persons, if sober, well-behaved, and free from disease, had the same right as others to ride streetcars was a genuine statement of legal principle: race alone was not a valid ground for exclusion. The conditional framing was Rockwell’s attempt to define the class of people whose rights he was recognizing.
The condition was revealing. No white passenger in 1855 New York was required to demonstrate that they were sober, well-behaved, and disease-free before boarding a streetcar. The presumption for white passengers was that they belonged in the car unless they gave evidence of disqualifying behavior. The condition Rockwell attached to Black passengers’ right to ride inverted that presumption: Black passengers had to demonstrate their fitness, rather than having fitness presumed.
This is the structure of what has been called respectability politics in subsequent scholarship — the demand that marginalized people meet an additional standard of conduct and presentation to access rights that the dominant group receives as a default. Elizabeth Jennings understood this structure and used its language strategically when she described herself as a respectable person, born and raised in New York. She was playing within the terms Rockwell’s instruction would establish, claiming the status that his instruction recognized.
The instruction also held that the company was liable for its agents’ actions whether careless or willful. This was important because it foreclosed a defense strategy that might have argued the company was not responsible for the individual conductor’s conduct. The instruction made the company’s liability a function of what its agents did, not what its official policy said.