For more than a century and a half, a photograph sat in an archive, cataloged and occasionally examined by researchers compiling records from the Civil War era. It showed two young Black women seated side by side in a Philadelphia photographer’s studio, their posture formal, their expressions calm, their fingers intertwined in what anyone would assume was a simple gesture of affection between sisters. Nothing about it seemed unusual. Then, in 2013, a curator enlarged the image using modern digital technology and noticed something that stopped her cold.
The position of the fingers was not random. It was deliberate, specific, and coded. Hidden in plain sight for 150 years was a message so carefully concealed that generations of historians had passed it by without ever knowing it existed. Dr.
Evelyn Harper had been working at the Boston Museum of African American History for nearly eight years when the anonymous donation arrived. It came in a weathered cardboard box postmarked from Philadelphia, with no return address and only a brief handwritten note tucked inside. “These belong to my grandmother. I think they matter.
” Inside were seventeen daguerreotypes, tintypes, and early paper photographs, most showing Black families and individuals from the 1850s through the 1880s. Evelyn logged each image into the museum’s database with careful attention, noting approximate dates, clothing styles, and studio backdrops. When she reached the ninth photograph, something made her pause. Two women sat together, clearly sisters.
The resemblance was unmistakable in the structure of their faces and the shape of their eyes. Their hands were clasped together, resting on the older sister’s lap. The composition felt deliberate in a way Evelyn could not immediately name. She scanned the daguerreotype at high resolution, and when the file appeared on her screen, she zoomed in on the hands.
The fingers were not simply holding each other. The older sister’s index and middle fingers crossed deliberately over the younger sister’s hand, while both thumbs were positioned at precise angles. It looked intentional, controlled, like a gesture that meant something beyond affection. Evelyn had studied enough about the Underground Railroad and the coded communication systems used by abolitionists and freedom seekers to recognize that this deserved closer examination.
This might be a message, and if it was, she needed to find out what it said. For three days she combed through every resource she could access on nonverbal communication systems from the Civil War era. She examined quilting patterns that supposedly contained directional codes, though many historians debated their authenticity. She reviewed documented hand signals used by conductors to identify safe houses.
Nothing matched the specific hand position in the photograph. Then she found a reference in an obscure academic journal from 1987, written by a historian named Dr. Laurence Winters, who had spent decades researching lesser-known resistance networks in Philadelphia. In a footnote, he mentioned that some Underground Railroad operatives had developed silent recognition signals, gestures made in public without drawing attention.
They were never written down, transmitted only through direct teaching, and lost to history when the generation that used them passed away. But one letter written by a Quaker abolitionist named Isaac Pemberton in 1864 contained a sentence that made Evelyn’s breath catch: “The sisters have perfected a silent tongue spoken with hands alone, which identifies the faithful even in crowded rooms where enemies listen. ”
She cross-referenced the date and location. Pemberton had been active in Philadelphia throughout the 1860s, working closely with Black conductors and free Black communities to coordinate escapes from the South.
Philadelphia was also where the photograph had been taken, according to the faint studio marking on the back: J. Wilson, photographer, Chestnut Street, Philadelphia, 1863. Evelyn called a colleague at Howard University, a historian specializing in African American resistance movements. When he answered, she said simply, “I think I found something that changes everything we know about the Underground Railroad in Philadelphia.
Can you come to Boston? ”
Dr. Marcus Reed arrived two days later carrying a worn leather satchel. He leaned over the image for a long moment, his eyes moving between the sisters’ faces and their intertwined hands.
Then he pulled a battered journal from his satchel. It had belonged to Jeremiah Todd, a free Black man who had operated as a conductor in Philadelphia from 1859 until his death in 1867. Marcus had been studying Todd’s writings for years, and there were entries that had always puzzled him, passages that seemed deliberately vague or coded. He opened the journal to a page marked with a red ribbon and read aloud: “Met with R and N today.
They have learned the silent speech, a crossing of hands, a position of fingers. This will be our recognition in dangerous places. Let no word of this be written plainly, for if our enemies discover it, the path will close. ” The date of the entry was June 1863, the same year as the photograph.
The description matched exactly what Evelyn had observed. The two women in the photograph might be R and N, the sisters Jeremiah Todd had trained in the silent recognition code. If that was true, then this photograph was not just a portrait. It was documentation, proof that the code had existed and evidence of how it looked.
They still did not know who R and N were. No full names appeared in Todd’s journal. Then Marcus found a letter tucked into the back pages of the journal, written in a different hand. It was addressed to “My dearest Ruth” and signed simply N.
The letter spoke of a journey, of danger, of a promise to return. At the bottom was a single line: “When you think of me, remember our sign. It will keep you safe. ” Ruth and Naomi.
The biblical names matched the initials. Suddenly the women in the photograph had identities. With names to work from, the research accelerated. In the membership register of Mother Bethel AME Church, one of the oldest African American churches in the United States, two women named Ruth and Naomi were listed in 1862 as participants in benevolent work, a common euphemism for Underground Railroad activity.
A letter from Lucretia Mott, a prominent Quaker abolitionist, mentioned meeting two remarkable young sisters in Philadelphia in 1863 who had risked everything to guide freedom seekers north. Then Marcus found a report filed by a federal marshal in 1863 documenting the capture of a Black woman, approximately twenty years old, apprehended near the Delaware border while guiding a family of freedom seekers. The woman had been returned to Maryland and sold back into slavery. No name was given, but the date was August 1863, just months after the photograph had been taken.
The timeline fit. The location matched routes Todd’s journal indicated the sisters used. And there was one more piece of evidence: a letter written in 1866, discovered in the archives of Mother Bethel Church, signed by someone named Ruth. It addressed all who remember and spoke of a sister who had been lost doing the Lord’s work, who had given her life so others might be free.
The photograph showed two sisters in 1863, their hands clasped in a coded signal that meant safety, trust, and recognition among those fighting for freedom. Within months of that photograph being taken, one of them had been captured, enslaved, and likely killed. The other had lived on, continuing the work, carrying the memory, and teaching the signal to others. Marcus and Evelyn worked with a team of historians, anthropologists, and experts in nonverbal communication to reconstruct what the hand signal actually meant.
The crossed fingers represented intersecting paths, the routes freedom seekers traveled. The older sister’s hand over the younger’s symbolized protection, guidance, the experienced conductor leading the way. The positioning of the thumbs indicated direction, pointing subtly toward the North Star without needing to speak or write a single word. It was a complete message compressed into a gesture that could be made in seconds, in public, even in the presence of slave catchers.
And the signal could be modified to convey additional information: a different angle of the thumb meant danger, do not approach. Fingers interlaced in reverse indicated a safe house nearby. A brief touch of the wrist meant I have people who need passage. It was an entire language, tactile and silent, designed to operate in the most hostile environments imaginable.
The photograph served a dual purpose. On the surface it was a formal portrait. But for those who knew the code, it was also a teaching tool, a way to pass the knowledge to new operatives, to ensure that even if the original practitioners died or were captured, the signal would survive. Ruth and Naomi had sat in that Philadelphia studio, positioned their hands with absolute precision, and created a document that would outlast them both.
In August 1863, Naomi had been guiding a family of five along a route from Maryland through Delaware into Pennsylvania. It was one of the most dangerous crossings, heavily patrolled by federal marshals enforcing the Fugitive Slave Act and frequented by professional slave catchers. According to testimony later provided by one of the surviving children, they had been betrayed by an informant who sold information to slave catchers for cash. Naomi had tried to run, to draw the pursuers away from the family, but she was captured within minutes.
Only the elderly grandfather managed to escape and reach a safe house in Philadelphia, where he told Jeremiah Todd what had happened. Todd recorded the incident with stark, grieving brevity: “Naomi taken, the family lost, we have failed them. ” Then he added a line that revealed the depth of the tragedy: “Ruth knows. She will not speak of it, but the light has gone from her eyes.
”
Naomi was returned to Maryland, sold to a plantation owner, and disappeared into the records of slavery. Ruth kept the photograph for the rest of her life. It became the last image of her sister as a free woman, the only proof that Naomi had existed, had mattered, had fought. Ruth continued the work alone, remaining active in the Underground Railroad until the end of the Civil War.
After the 13th Amendment abolished slavery, she helped formerly enslaved people navigate the dangers of Reconstruction, worked with the Freedmen’s Bureau, taught literacy classes, and organized mutual aid societies. In 1870 she opened a small boarding house for Black women arriving in Philadelphia from the South, and she ran it until her death in 1889 at the age of 68. Her obituary described her as a woman of great dignity and faith, but made no mention of the Underground Railroad, the silent code, or the sister she had lost. The photograph passed to her niece, who kept it stored along with letters and the hand-stitched quilt Ruth had made in her later years.
When Evelyn and Marcus examined the quilt, they realized it contained the same directional patterns seen in the studio backdrop of the photograph. Ruth had continued encoding resistance even after the need for secrecy had passed, preserving the knowledge in fabric and thread. When Evelyn and Marcus presented their findings at a historical conference in 2014, they showed the photograph on a large screen. At the end of the presentation, a woman in the back row stood and asked if she could see the photograph up close.
Her name was Clara Bennett. She was 73 years old, and she believed Ruth might have been her great-great-great-grandmother. Clara had grown up hearing stories about a woman in her family named Ruth who had done the Lord’s work during the Civil War era. She brought a small wooden box that had been passed down through her family, containing a pair of wire-rimmed glasses, a pressed flower, and a folded piece of paper with a hand-drawn sketch.
It showed two hands clasped together, fingers positioned in the exact configuration visible in the photograph. Below the drawing in faded ink were the words: “Remember the sign. It kept us safe. ” It was Ruth’s handwriting.
DNA testing confirmed the connection. Clara was a direct descendant of Ruth. In 2015, the Boston Museum of African American History opened a permanent exhibit titled Silent Language, Codes of Resistance in the Underground Railroad. At its center was the photograph of Ruth and Naomi, enlarged and restored, with detailed explanations of the hand code, the network they belonged to, and the fates that awaited them after the image was taken.
Beside it were Ruth’s quilt, Clara Bennett’s family heirlooms, excerpts from Jeremiah Todd’s journal, and letters from abolitionists describing the silent speech they had witnessed but never fully understood. Visitors studied the hand position, trying to replicate it with their own fingers. Descendants of other operatives contacted the museum, sharing fragments of the code that had survived in whispers and gestures passed from parent to child. Ruth and Naomi could not have known their image would survive, that someone would eventually look closely enough to understand what they were saying.
But they left the message anyway, trusting that someday someone would see. In 2013, someone finally did. The silence was broken, the code was revealed, and two women who had been invisible for 150 years stepped out of history’s shadows and into the light, their hands still clasped together, still speaking their silent language, still saying: We were here. We fought.
We mattered. Remember us.