Letter from Donaldson, Stuart A. to John Gould, December 22, 1840 [removed from MS 304:49.32]

Letter from Natterer, John to John Gould, December 10, 1840 [removed from MS 304:49.32]

Letter from Ewing, Thomas J. to John Gould, February 22, 1841 [removed from MS 304:50.19]

Letter from Mitchell, David W. to John Gould, February 24, 1841 [removed from MS 304:50.20]

Letter from Lear, Edward to John Gould, February 24, 1841 [removed from MS 304:50.21]

Letter from Eyton, Thomas C. to John Gould, March 25, 1841 [removed from MS 304:50.23]

Letter draft from Gould, John to Professor William Vrolik, March 19, 1841 [removed from MS 304:50.23]

Letter from Vrolik, W. to John Gould, April 8, 1841 [removed from MS 304:50.24]

Letter draft from Gould, John [in Edwin Prince's and Gould's hands] to Baron Frédéric de la Fresnaye, April 8, 1841 [removed from 304:50.26]