Name
- Ashworth, H R, of Withington Girls' School1
- Barlow, Edmund, Secretary, Openshaw Brotherhood; correspondent of Marie Stopes, fl 19061
- Barnes, Jon, of Broughton Dye Works, Salford; correspondent of Marie Stopes, fl 1906-19081
- Bartrum, C. O., of the Hampstead Scientific Society, fl 1906-19211
- Beer, Rudolf, of Bickley Kent1
- Benham, Keith, of Stafford1
- Blackman, Frederick Frost, botanist at Cambridge1
- Boodle, L A, of the Jodrell Laboratory Kew Gardens1
- Carruthers, William, Keeper of Botany British Museum1
- Carson, Madeline1
- Cash, William?, of Halifax1
- Coulter, John M, of the Department of Botany University of Chicago1
- Dalton, William Herbert, geologist, 1848-19291
- Earnshaw, John, of Oldham; correspondent of Marie Stopes, fl 19061
- Flett, John Smith, geologist, 1869-19471
- Frye, Theodore C, of the Department of Botany State University Seattle1
- Gresley, William Stukeley, mining engineer, fl 1877-19071
- Hammond, J Z?, of John Hammond and Co Ltd Manchester1
- Hargreaves, John, paper maker of Manchester1
- Heinrich, C, printer of Dresden1