Photographs as Primary Sources: Reading Images for Historical Evidence

In 1893, a photographer captured twenty-seven girls and two boys standing at the pit brow of a coal mine in England, moments before their shift began. The image, now held by The National Archives, shows them in their working clothes, faces smudged with coal dust, staring at the camera. For a historian, this is not merely a picture—it is a primary source, a fragment of the past that can reveal the working conditions, social attitudes, and material culture of the Victorian era. Yet as The National Archives cautions, “Seeing is not necessarily believing.” Photographs are framed, staged, and often biased. They reflect the perspective of the photographer and the expectations of the time. This article explores how historians read photographs as primary sources, what questions they ask, and what these images can—and cannot—tell us about the past.

What Happened?

Photography emerged in the 1830s and by the late nineteenth century had become a widespread means of documenting people, places, and events. The National Archives holds photographs from the 1890s onward, including the 1893 Pit Brow Girls image and a 1957 photograph of the Achimote School Art Club in the Gold Coast, taken by Miss Dee Kwawukume. These images were often produced for official purposes—copyright records, government reports, or publicity—but they also captured the everyday lives of ordinary people.

The practice of using photographs as historical evidence developed gradually. In the early decades, photographs were often treated as objective records, but archivists and historians soon recognized the need for careful analysis. The National Archives now offers a set of questions for students: What type of source is this? Who produced it? When was it produced? What can we infer? What values or attitudes does it suggest? How does it relate to a historical situation? Similarly, the Library of Congress Teacher’s Guide directs students to Observe, Reflect, and Question—asking what they see first, what is happening, and what might be missing.

The key development was the recognition that a photograph is not a transparent window onto the past. It is a constructed image, created by a photographer with a purpose. The Minnesota Historical Society notes that photographs are “taken for different purposes” and “some are heavily manipulated.” This understanding has transformed the way historians work, turning photographs from mere illustrations into sources that require rigorous analysis.

How It Was Seen at the Time

In the late nineteenth century, the public and many officials believed that photographs were unassailable evidence—a true record of what they saw. The Pit Brow Girls photograph, for instance, was taken to document the working conditions of women and children in mines, and contemporaries likely saw it as proof of the harsh reality. Yet even then, the limitations were known. As The National Archives now reminds us, “Just like documents they must be treated with caution. Seeing is not necessarily believing!” The photograph of the Pit Brow Girls does not show the dangers of the work itself; it only captures a moment before the shift. It does not convey the noise, the dust, or the physical strain. What it does show is the arrangement of workers, their clothing, and their posture—details that were taken for granted at the time but now offer rich evidence.

“What are seeing and attitudes does the photograph suggest?” — The National Archives

Contemporary viewers likely accepted the photograph as a truthful record of the girls’ lives, but they may also have seen it through the lens of social reform or economic necessity. The photograph was taken by an unknown photographer, and its original purpose is not recorded, but it was later deposited in the official copyright records, suggesting it was seen as a document of value.

Historical Snapshot

What People Knew at the Time

What the Sources Got Wrong

Photographs, like any source, can mislead. The National Archives warns that photographs “may be taken for different purposes” and that “some are heavily manipulated.” The Pit Brow Girls photo, for example, is a staged group portrait—it does not show the actual labor of the girls, only their appearance. The photographer may have arranged them for a clear shot, and the image does not convey the physical effort or danger of the work. Similarly, the Minnesota Historical Society notes that “people, place, date, and the name of the photographer are often not identified,” leaving the image without context. Without context, a photograph may be interesting but not informative.

Another common error is assuming that a photograph captures a spontaneous moment. In reality, early photographs required long exposure times, so subjects had to pose still. The Pit Brow Girls are arranged in a group, likely at the photographer’s direction. This staged quality means the photograph does not show “a moment” but a constructed representation.

How Historians See It Today

Modern historians approach photographs as constructed sources, not transparent windows. They ask the questions outlined by The National Archives and the Library of Congress: Who produced it? Why? What is missing? Historians also use photographs in conjunction with other evidence—written records, census data, oral histories—to verify and contextualize. The National Archives states that “photographs must be studied in conjunction with other evidence. Without context, a photo may be interesting but not informative.” This represents a shift from the earlier belief that photographs were self-explanatory.

In the case of the Pit Brow Girls, historians today would examine the photograph alongside mine records, factory inspector reports, and personal accounts to understand the lives of these workers. They would also consider the photographer’s perspective—the photo was taken for copyright, not for social reform, so it may not highlight the worst conditions. This methodological caution is now standard in historical practice.

Common Misconceptions

Related Primary Sources

• The National Archives (UK) – Working with Photographs – Offers guidance and examples like the Pit Brow Girls photograph.
• Library of Congress – Teacher’s Guide: Analyzing Photographs & Prints – Provides structured questions for analysis.
• Minnesota Historical Society – Images as Primary Sources – Discusses strengths and weaknesses of photographs as evidence.

The photograph of the Pit Brow Girls is just one of millions of images in archives worldwide. Each one is a fragment of the past, waiting to be read with the right questions. As The National Archives reminds us, “Seeing is not necessarily believing.” The historian’s task is to look beyond the surface, to ask who created the image and why, and to place it within a broader web of evidence. In doing so, photographs become not just illustrations, but powerful primary sources that illuminate the lives of people who might otherwise be invisible in the written record.