Catharina Johanna ("Toos") Beumer (born 5 July 1947 in Koog aan de Zaan

Koog aan de Zaan

Koog aan de Zaan is a town in the Dutch province of North Holland. It is a part of the municipality of Zaanstad, and lies about 11 km northwest of Amsterdam....

) is a Dutch

Netherlands

The Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...

 swimmer. She won the bronze medal in the 4×100 metres freestyle relay at the 1964 Summer Olympics

1964 Summer Olympics

The 1964 Summer Olympics, officially known as the Games of the XVIII Olympiad, was an international multi-sport event held in Tokyo, Japan in 1964. Tokyo had been awarded with the organization of the 1940 Summer Olympics, but this honor was subsequently passed to Helsinki because of Japan's...

 in Tokyo

Tokyo

, ; officially , is one of the 47 prefectures of Japan. Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the largest metropolitan area of Japan. It is the seat of the Japanese government and the Imperial Palace, and the home of the Japanese Imperial Family...

. Her team mates in that race, clocked in 4:12.0, were Pauline van der Wildt

Pauline van der Wildt

Paulina Jacoba van der Wildt was a Dutch swimmer who won the bronze medal in the 4x100 metres Freestyle Relay at the 1964 Summer Olympics in Tokyo. Her teammates in that race, who clocked in at 4:12, were Toos Beumer, Erica Terpstra and Winnie van Weerdenburg.-References:* *...

, Erica Terpstra

Erica Terpstra

Erica Georgine Terpstra is a retired Dutch freestyle swimmer, theosopher, sports journalist, state secretary and member of parliament. Between late 2003 and 18 May 2010 she was chairperson of the NOC*NSF...

 and Winnie van Weerdenburg

Winnie van Weerdenburg

Wilhelmina van Weerdenburg was a Dutch swimmer. Born in The Hague, she won the bronze medal in the 4x100 metres Freestyle Relay at the 1964 Summer Olympics in Tokyo. Her team mates in that race, clocked in 4:12,0, were Toos Beumer, Erica Terpstra and Pauline van der Wildt...

. Four years later, Beumer also participated in the 1968 Summer Olympics

1968 Summer Olympics

The 1968 Summer Olympics, officially known as the Games of the XIX Olympiad, were an international multi-sport event held in Mexico City, Mexico in October 1968. The 1968 Games were the first Olympic Games hosted by a developing country, and the first Games hosted by a Spanish-speaking country...

 in Mexico City

Mexico City

Mexico City is the Federal District , capital of Mexico and seat of the federal powers of the Mexican Union. It is a federal entity within Mexico which is not part of any one of the 31 Mexican states but belongs to the federation as a whole...

, in the 100 m freestyle, but she didn't qualify for the semi-finals.