Just one year after the signing of the Ohlsdorf Treaty, which was the basis for the Hamburg-Altona City and Suburban Railway—the precursor of the S-Bahn—on 12 December 1905, a community group formed to promote the extension of the suburban railway through Ohlsdorf to the Alster Valley and beyond.
On September 8, 1946, 27 urns from murdered Resistance fighters from Hamburg were buried in a cemetery in Ohlsdorf.