Johann Philipp Reis, inventor of one of the first telephones, born January 7, 1834 at Gelnhausen, died 14 January 1874 at Friedrichsdorf
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August Brey, politician, member of the Weimar National Assembly, born August 1, 1864 at Gelnhausen, died 28 July 1937 at Ronnenberg
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Oskar Fischinger, film director, born June 22, 1900 at Gelnhausen, died January 31, 1967 in Los Angeles
The Hanau-Gelnhausen high-speed railway is a planned railway connecting Hanau and Gelnhausen in Germany.
His personal best jump was 8.13 metres, achieved in September 1987 in Gelnhausen.
Count Palatine William of Birkenfeld-Gelnhausen (4 January 1701 in Gelnhausen – 25 December 1760 in The Hague) was a titular Count Palatine of Zweibrücken-Birkenfeld and an Imperial Field Marshal.
The central platform (tracks 2 and 3) is serves primarily by Hessische Landesbahn services on the Gießen–Gelnhausen railway to Giessen via Nidda, Hungen and Lich and to the south towards Gelnhausen via Büdingen.
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The station was opened on 30 October 1870 with opening of the end of the third section of the Gießen–Gelnhausen railway (Nidda–Büdingen) by the Upper Hessian Railway Company (Oberhessische Eisenbahn-Gesellschaft).
Henry Aaron Stern (Unterreichenbach, near Gelnhausen, 11 April 1820 - Hackney, 13 May 1885) was an Anglican missionary and captive in Abyssinia.
The entire route of the Lahn-Kinzig Railway to Gelnhausen, that comprised a link line of 70 km length along the western perimeter of the Vogelsberg to the Kinzig Valley Railway, was completed on 30 November 1870.
The economic power of the Wetterau has increased continuously through specific promotion of its urban centres Frankfurt am Main, Wetzlar, Gelnhausen and Friedberg since Frederick I, Holy Roman Emperor.