Johannes Willem Holtrop
Dutch librarian (1806–1870), librarian of the Koninklijke Bibliotheek in The Hague, owner/creator of the album amicorum of Johannes Willem Holtrop (1806–1870) (1806–1870)
Dutch librarian (1806–1870), librarian of the Koninklijke Bibliotheek in The Hague, owner/creator of the album amicorum of Johannes Willem Holtrop (1806–1870) (1806–1870)