Notes:
British rider Frank Longman was an Isle of Man Tourist Trophy veteran, having raced in that event from 1921 through 1933, making 29 starts with one outright victory in the 1928 Lightweight TT.

Frank Longman won the 350 cm³ class in the 1923 French Grand Prix held at the Circuit de Touraine, near Tours, at an average speed of 56.4 mi/h (90.75 km/h), riding an AJS 350 racing machine, nicknamed "Big Port" because of the rather large dimensioned exhaust port. The bike featured a vertical single cylinder engine. That year he went on to race in the AJS works team, which in addition to him consisted of Britain's Bill Hollowell and the Italian Ernesto Gnesa, winner of the Grand Prix des Nations at Monza on the same machine.

The following year Longman was able to win once again the 350 cm³ class in French Grand Prix, this time at the Circuit de Givors, Lyon, France, and also earned second place behind Howard Davies in the Isle of Man Senior race. In 1926 he won the 350 cm³ class in the European Championship, scoring a victory in the Belgian Grand Prix - Grand-Prix d'Europe at Spa-Francorchamps.

A second European 350 cm³ class title followed in 1927, when Frank Longman moved to a Velocette. He won for the third time in five years the French Grand Prix, held at the Circuit du Comminges, Saint-Gaudens, France, and was runner-up to Jimmy Simpson's AJS in the Grand Prix of Germany at the newly built Nürburgring. In 1928 Longman won his first and only Tourist Trophy race, aboard an OK-Supreme 250 bike. Two months later he won the Ulster Grand Prix at Clady, Belfast, Nothern Ireland, riding his Velocette 350.

Frank Longman joined the OK-Supreme team in 1929, winning his third European Championship in the quarter liter class. He celebrated his second victory in the Ulster Grand Prix on 07 September 1929 and in October he won his class in the Spanish Grand Prix - Grand-Prix d'Europe held at Ametlla del Vallès, Granollers, about 30 kilometers north of Barcelona. In the following years Frank Longman reduced his international activity. In the Isle of Man Tourist Trophy he obtained only a 5th place in the Lightweight race in 1931, on a OK-Supreme.

Frank Longman competed in the 1933 Isle of Man Tourist Trophy races, held that year between 12 and 16 June. On Wednesday, 14 June 1933, during the Lightweight race, Longman crashed his 250 cm³ Excelsior at Glentramman, with fatal consequences. He was thirty-nine years old.

• Book Isle of Man TT & MGP Memorial 1907-2007 by Paul Bradford.
• Website Isle Of Man TT & MGP Memorial by Paul Bradford, page http://www.tt-memorial.com/longman%20f%20a.htm .
• Website Vintage Bike, page http://www.vintagebike.co.uk/pictures/frank-longman-1928-ok-supreme/#.VktGpXarTcs .
• Website A.J.S. Motorcycles, page http://www.historywebsite.co.uk/Museum/Transport/Motorcycles/ajs4.htm .
• Website Racing Memory by Vincent Glon, page http://racingmemo.free.fr/M%20HISTOIRE/M-HIST%201926.htm .
• Website Isle of Man TT, page http://www.iomtt.com/TT-Database/Events/Races.aspx?meet_code=ALL&ride_id=363 .
• E-mail by Andy Marlow, dated 24 January 2005.
• E-mail by Herman Looman, dated 21 May 2006.
• E-mail by Paul Tipler, dated 22 February 2011, citing personal archives.
• E-mail by by Paul Tipler, dated 13 June 2011.