Bristol and Gloucestershire Archaeological Society
Bagnall-Oakeley was a member of the Bristol and Gloucestershire Archaeological Society, where she gave presentations on a variety of antiquarian subjects. The society was founded in 1876 and, like the Clifton Antiquarian Club, offered a programme of lectures and excursions. In 1889, she presented a paper entitled "Sanctuary knockers" (or "hagodays") which detailed the history of 12th to 14th century church door knockers, the use of which allowed anyone to claim sanctuary at any hour. She submitted sixteen papers over a period of twenty years:
"On Roman Coins found in the Forest of Dean" (Volume 6, 1881–1882)
"On Some Sculptured Effigies of Ecclesiastics in Gloucestershire" (Volume 9, 1884–1885)
"Ancient Church Embroidery in Gloucestershire" (Volume 11, 1886–1887)
"Ancient Church Embroidery in Gloucestershire (addendum)." (Volume 11, 1886–1887)
"Sanctuary Knockers" (Volume 14, 1889–1890)
"On the Monumental Effigies of the Family of Berkeley" (Volume 15, 1890–1891)
"Ancient Sculptures in the South Porch of Malmesbury Abbey Church" (Volume 16, 1891–1892)
"Ladies' Costume in the Middle Ages as represented on Monumental Effigies and Brasses" (Volume 16, 1891–1892)
"On Some Pre-Roman Sculptured Slabs At Daglingworth Church" (Volume 17, 1892–1893)
"The Dress of Civilians in the Middle Ages, from Monumental Effigies" (Volume 18, 1893–1894)
"Notes on a great Hoard of Roman Coins found at Bishop's Wood" (Volume 19, 1894–1895)
"Grosmont Castle, Skenfrith Castle and Church, Pembridge Castle" (Volume 20, 1895–1897)
"Monumental Effigies in Bristol and Gloucestershire" (Volume 25, 1902)
"Rural Deanery of South Forest" (Volume 25, 1902)
"Rural Deanery of Bitton" (Volume 25, 1902)
"Rural Deanery of Cheltenham" (Volume 25, 1902)