A group of women associated with the Hells Angels, 1973.
A woman and a performing seal at a circus, 1935.
The Motor Maids of America outside the shop they used as their headquarters, 1950.
Children being pulled along by a woman on a motorbike in London, 1926.
A woman riding a Triumph Tiger Cub motorbike, 1960.
The Riverhill Riders Club, 1962.
A woman alongside her Harley-Davidson in California, 1925.
Nancy and Betty Debenham, well-known motorcyclists, riding BSA bikes with their dog, 1925.
Nancy setting off for a motorcycle rally in England, 1934.
A woman rider in the Six Days Motorcycle Trial, in which competitors have to cover 200 miles a day over rough terrain, 1933.
Workers measuring the positions of footrests and controls on partially finished motorcycles, 1933.
A woman dispatch rider with a male friend in tow during World War I, 1917.
A reverend blesses the motorcycle of a woman who is learning to drive, 1938.
A woman repairing her motorbike inside a workshop, 1950.
Miss E. Foley and Miss L. Ball, entrants in the International Six Days Reliability Trials, at Brooklands race track in England, 1925.
A woman on a 500 OEC Tinkler All-Weather Model designed for use on rough roads and cross-country, 1928.
Women feeding seagulls on motorcycles in Daytona, Fla., 1968.
Madge Saunders and her husband, British comic actor Leslie Henson, 1920.
A woman on her BMW motorcycle, 1935.
Three women riding motorbikes at the ACU Trials in Birmingham, England, 1923.
A woman trying out a Douglas motorcycle on display at the 18th Cycle and Motorcycle Show in London, 1933.
Beryl Swain, the first woman to compete as a solo entrant in the annual TT race on the Isle of Man, on her 50cc motorbike, 1962.
Beryl Swain training for the annual TT race, 1962.
A woman riding a motorcycle alongside a woman on a horse in London, 1921.
Women of Achille Serre Ltd’s Private Fire Brigade setting off on their motorcycle and sidecar to compete in the London Private Fire Brigades’ Tournament, 1925.
Marjorie Dare (Doris Smith) riding hands free around “The Wall of Death” sideshow at the Kursaal amusement park in Essex, England, 1938.
Marjorie Dare performing, 1938.
Two women ready to play tennis on a BSA motorbike, 1925.
Outside a motorcycle shop, 1964.
Marjorie Cottle (second from left), a famous motorcyclist, and friends in Germany, 1920.
An entrant in a ladies-only reliability trial in London, England, 1927.
- Athletes probably won't break records at the Rio Olympics. Scientists say most top performers have reached the limits of human biology.
- Bernie Sanders' former press secretary says she experienced repeated incidents of blatant racism while on the campaign trail.
- Sixteen people died after a hot air balloon caught fire and crashed in Texas Saturday.