13 volumes of photograph albums, known to Offaly Historical and Archaeological Society as the Magan-Biddulph Collection. complied by Lt. Col. Middleton Westenra Biddulph, landowner of the Rathrobin estate, near Mountbolus, County Offaly. Biddulph was born in Rathrobin in 1849, the eldest surviving son of Francis Marsh Biddulph and Lucy Bickerstaff. The Biddulph family's landholding was principally in the townlands of Rathrobin and those adjoining of Clonseer, Cormeen, Kilmore and Mullaghcrohy, all near Mountbolus, in the civil parish of Killoughy and the barony of Ballyboy. Middleton Biddulph enlisted with the Northumberland Fusiliers (Fifth Regiment) in 1867, rising to the ranks of Lieutenant Colonel before his retirement in 1896. Following his retirement, Biddulph and his wife, Vera Josephine Flower, returned to Rathrobin and rebuilt the old house over the period 1898 to 1900. Biddulph served as High Sheriff for King's County in 1901, and was appointed Deputy Lieutenant of the county in 1910.

As a keen amateur photographer, Biddulph used a quarter plate camera to document his various areas of interest including; his military career with the Northumberland Fusiliers; visits to country houses across Ireland, England and Scotland; members of the Biddulph and Magan family; visits around Ireland as part of the Royal Society of Antiquarians; interior and exterior photographs of Rathrobin House; agricultural work on the estate. There is also an extent of photographs of tenant families and employees of the Rathrobin estate, featured across the photograph albums.

Biddulph and his wife left for England in June 1921 as the military campaign of the IRA in the locality intensified, and Rathrobin House was destroyed by Republican IRA forces in April 1923. While he seemed to have planned to return to Ireland after this, an attack on his land agent and niece, Violet Magan, and his own declining health delayed plans to do so, and he died in Chelsea in May 1926. The albums were presented to Offaly Historical and Archaeological Society in 1997 by Brigadier William Magan, a nephew of the photographer.

'Brookfield House, 6 June 1901'.

4. 'Brookfield, June 6th 1901'.
5. 'Falrua, Captain French, Vera, Claytee, C. French'.
6. 'Falrua, Digby, Coote , Brian Sherlock'.
7. 'Captain French, Falrua, Mrs. Craig, Reamsbottom, Vera, Mrs. Coote, Mrs. Moore'.

Tullamore Tennis Ground, Cake Fete 5 June 1901'

8. 'Mrs Craig, William Brown, Tobin, Mrs Armstrong, Mr. Humphries'.
9. 'Ellen Goodbody, C. Armstrong, Kitty Armstrong, Tobin, Mrs. Coote, G. A. Bowden'.
10. 'Rev. Hide, C. Williams, Rev. M. Coote, William, Rev. Humphrey'.
11. 'Mrs. Moore, Mrs. Armstrong, C. Banon'.

Ballyfin, July 1901'

69. 'Miss M, Sir Algernan, Lady Coote'.
70. 'Mrs Mulville, Mrs Hamilton, Sir Algernan Coote'.

Dunglass continued'.

152. Untitled.
153. Untitled.
154. Untitled.
155. Untitled.

Newbrough House continued'.

165. 'Newbrough House'.
166. 'Newbrough House'.
167. 'Brockley Park, Queen’s Co. 23-26th July 1902'.
168. 'Mrs Young, Vera, Mr Young.'

Middlehill continued, 12th May 1903'.

175. 'Spencer F [Flower], V.E. and A.J. Vera B., Lilian, Vera'.
176. ' A.F., Isabella, Rita, Vera, V. Edgar'.
177. 'Edgar Flower, Harry Sanford on the drive'.
178. 'At Isabella’s. Vera, Rita Sanford, V. Edgar on the lawn'.

Avonbank Stratford-on-Avon. May 15th 1903'.

187. 'The Shakespeare Memorial from garden Avonbank'.
188. 'Church from Avonbank'.
189. 'From my dressing room'.
190. 'Star Fitzjack Stanhope Garden. April 14th 1903'.

9. 'Victoria the foal born 19th July 1902'.
10. 'Paul, Terry, John, Ellen, Lizzie, Katie, Mrs. Bennett, Eliza, August 1902'.
11. Untitled
12. Untitled

17. 'Under his own vine Middleton Biddulph'.
18. 'S. Fox, Cherry, Barry Fox, Charlie Hackett, Col. Hackett, Vera'.
19. 'Vera, vistor (before leaving) Rob, 2nd Sept. 1902'.
20. 'Sophie Fox, Margaret Cherry, Barry Fox, Charlie Hackett, Col. Hackett, Mrs. Cherry. Rory in the garden Rathrobin. 10th Sept.1902'.