In 1871, Edwin Dunkin published a basic plan of the monument, noting that there were similar chambered tombs around Britain. In 1880, the archaeologist Flinders Petrie included the Addington stones in his list of Kentish earthworks; he commented that "with extraordinary perversity have been hitherto described as forming a circle, though they appear to be very plainly in two lines". He published a small, basic plan of the monument. The barrow then received a mention in George Payne's "Collectanea Cantiana", published in 1893. Payne noted a folk tradition that stone avenues connected Coldrum to the Addington Long Barrow, although he commented that he was unable to discover any evidence of this feature. The earliest published photographs of the monument, taken by George Clinch, appeared in a 1908 volume of the "Victoria County History" series. In his 1924 publication dealing with Kent, the archaeologist O. G. S. Crawford, then working as the archaeological officer for the Ordnance Survey, listed the Addington Long Barrow alongside the other Medway Megaliths.