Immigrants arriving at Ellis Island were waiting in line for a series of inspections that would determine whether they could enter the United States. The process included a medical examination, a legal interview, and, if they passed both, access to services like currency exchange and railroad tickets to their final destination. Most people moved through the entire process in three to five hours, though on the busiest days the wait stretched much longer. On April 17, 1907, the station’s peak day, 11,747 people were processed.
The Line Started on the Staircase
After ferrying over from their ships anchored in New York Harbor, immigrants entered the main building and climbed a wide staircase to the second-floor Registry Room. This climb wasn’t just logistics. Doctors from the U.S. Public Health Service stood at the top, watching each person ascend. They were looking for signs of physical difficulty: limping, heavy breathing, difficulty with the stairs. Anyone who struggled was pulled aside before the formal inspection even began.
The lines in the Registry Room were divided by metal railings into narrow corridors, funneling people single file past a team of physicians. President Theodore Roosevelt, visiting Ellis Island in 1906, watched the process and saw what staff called the “six-second physical,” a rapid visual scan of each person passing through.
The Medical Inspection
Doctors assessed each immigrant in seconds, scanning for visible signs of disease, disability, or mental impairment. If a person appeared healthy, they moved forward without stopping. But if a doctor had even the slightest suspicion that something was wrong, a chalk mark went on the immigrant’s coat lapel. Between 15 and 25 percent of immigrants received one of these marks. Each letter corresponded to a specific concern: “E” for eye problems, “H” for heart conditions, “GXD” for suspected mental defects, and so on. A chalk mark didn’t mean rejection. It meant you were pulled out of the main line and sent to a secondary examination room for a closer look.
The eye exam was the most dreaded part. Trachoma, a highly contagious bacterial eye infection that can cause blindness, was one of the few conditions that guaranteed deportation. To check for it, doctors flipped back each immigrant’s eyelids using their fingers or a buttonhook, a small curved tool originally designed for fastening shoe buttons. The procedure was fast and uncomfortable. One immigrant later recalled that a doctor, without saying a word, stuck a finger into her mother’s eye and turned the lid up with the hook. For many people, this was the most physically invasive moment of the entire process.
The Legal Interview
After clearing the medical line, immigrants waited again to sit before a registry clerk and an interpreter. The interview covered roughly 30 questions pulled from the ship’s passenger manifest: name, age, occupation, how much money they carried, whether they had a relative or contact in the United States, and whether they could read. Inspectors were checking for reasons to exclude someone under federal immigration law. People could be turned away for being unable to support themselves financially, for having a criminal record, for being suspected anarchists, or for failing a literacy test that was added in 1917.
Single women and unaccompanied children faced extra scrutiny. Inspectors worried they would become “public charges,” meaning they’d need government support. In one documented case, a single mother from Eastern Europe was detained simply because she had been crying over being separated from her daughter during processing. Doctors initially suspected a mental disability, but there was no medical evidence to support it. She was actually being held because, as an unaccompanied woman, she was considered an economic risk.
The Staircase of Separation
Once an immigrant finished their legal interview, they descended what staff and historians call the Stairs of Separation. The staircase split into three paths. The left side led to the New York ferry dock for people heading into the city. The right side led to a room where approved immigrants could exchange foreign currency for American dollars, buy railroad tickets, and check baggage before continuing to New York or New Jersey. The center staircase led to detention for anyone flagged for further medical or legal review.
For families, this was sometimes the moment they were split apart. One member might be cleared while another was held for additional inspection, and there was no way to know from the top of the stairs how long a detention would last.
What Happened If You Were Detained
Immigrants held for further review stayed in dormitories on the third floor of the main building. From 1900 to 1908, these were two long rooms, each holding about 300 people in triple-tiered bunk beds. During the day, the beds were raised to convert the space into a waiting area. After 1908, the dormitories were subdivided into 14 smaller rooms, offering slightly more privacy.
Conditions were stressful. One detainee, Britia Rosendor, was held for 38 days during a measles outbreak. She later described the experience: no fresh air, constant tension, and difficult people making the atmosphere worse. Detainees waited for hearings before a Board of Special Inquiry, a panel that would decide whether they could enter or would be deported. The emotional toll was enormous, especially for people who had spent weeks crossing the Atlantic only to face the possibility of being sent back.
Despite the fear that Ellis Island inspired, the actual rejection rate was low. During the station’s 30 busiest years, only about 2 percent of detained immigrants were deported. The most common reasons for exclusion were contagious diseases like trachoma, suspected mental disability, criminal history, and the likelihood of becoming a public charge. For the vast majority, the lines at Ellis Island ended with permission to step onto American soil.
After the Lines: Getting to Your Destination
For the roughly 98 percent who passed inspection, the final stop inside Ellis Island was practical. The railroad ticket office allowed immigrants to exchange whatever currency they had carried from Europe and buy train tickets to cities across the country. Many were heading to relatives in Chicago, Pittsburgh, or dozens of smaller industrial towns. They could also check their baggage and grab food before boarding a ferry to Manhattan or a barge to the railroad terminal in New Jersey. The entire island was designed as a processing pipeline, moving people from ship to shore as efficiently as the medical and legal screenings allowed.