Vocation : Engineer : Mechanical

Janów Podlaski (Polish: [ˈjanuf pɔdˈlaskʲi]) is a town in Biała Podlaska County, Lublin Voivodeship, in eastern Poland, close to the border with Belarus. It is the seat of the gmina (administrative district) called Gmina Janów Podlaski. It lies approximately 20 kilometres (12 mi) north of Biała Podlaska and 115 km (71 mi) north-east of the regional capital Lublin.
Football Team is called Janowia Janów Podlaski.
The state stud farm, also called Janów Podlaski, or simply Janów, is a world-renowned horse breeding establishment that specializes in the purebred Arabian horse.

Mary Plumb Blade (20 January 1913 – 4 December 1994) was an American engineer, director of the Green Camp from 1955 to 1972, and full-time professor of mechanical engineering in the engineering school of The Cooper Union for the Advancement of Science and Art from 1946 to 1978.

The Daguin machine was one of the first cancelling machines used by the French postal administration. It was created by Eugène Daguin (1849–1888). Its first official use took place in June 1884 in Paris. It could cancel three thousand covers per hour.
Two datestamps were printed in one move by the postal clerk: the first cancelled the postage stamp and the second was a readable proof of date on the cover. Until 1949, the datestamp centers were 28 millimeters away from one another.
In the 1900s, more efficient machines replaced the Daguin. But it came back to service in the 1920s: the second datestamp was replaced by a commercial message inscribed in a round cornered quadrilateral. The official retirement of the Daguin machines was declared in the 1960s, with some exceptional use until the 1970s.
Philatelists discovered and studied the machine and its twin cancellations in the 1950s.

León Ávalos y Vez (24 January 1906 – 1991) was a Mexican mechanical engineer who served as the founding director-general of the Monterrey Institute of Technology (ITESM, 1943–1946) and as director-general of the National School of Electrical and Mechanical Engineering of the National Polytechnic Institute (IPN, 1943).Ávalos y Vez was born in Atlixco, Puebla, on 24 January 1906 into a family composed by Ignacio Ávalos and Amalia Vez. He received a bachelor's degree in Mechanical Engineering from the National Polytechnic Institute and a master's degree in the same discipline from the Massachusetts Institute of Technology (1929).

Luis Zambrano (Bailadores, May 1, 1901 - Tovar, August 15, 1990) was a self-taught inventor and mechanic from Mérida, Venezuela.

André Lefèbvre (19 August 1894 – 4 May 1964) was a French automobile engineer.
André René Lefèbvre was born in Louvres, France (North of Paris, Val d'Oise). He began his career as an aviation engineer working for Voisin, then later for Renault and Citroën. He was also a racing driver and racing car designer.
After studying at Supaéro, he began to work for Gabriel Voisin in March 1916. Voisin placed Lefebvre in charge of his Laboratoire where he worked, until the end of World War I, on aviation projects and then automobiles. He is particularly noted for creating the Voisin C6 Laboratoire, which was a racing car prepared for the 1923 French Grand Prix.
When Voisin ran into business problems in 1931, Lefèbvre was recommended to Louis Renault. Renault was persuaded to recruit Lefèbvre by François Lehideux, himself a senior executive within the company (who was also married to the daughter of Renault's brother).
Lefèbvre remained with Renault only until 1933, when he was hired by André Citroën to work on the Traction Avant project. After the death of André Citroën in 1935, Lefèbvre continued his work at Citroën, now led by the innovative entrepreneur Pierre-Jules Boulanger, who came to the company from Michelin.

Working with Citroën designers Flaminio Bertoni and Paul Magès, Lefèbvre created four of the most dramatic, boldly designed vehicles of 20th century:

Citroën Traction Avant (1934–1957) – a large family sedan, a favourite of gangsters, the French resistance and the Gestapo, built for 23 years
Citroën 2CV (1948–1990) – a small, advanced, utility sedan, known as "the duck" or "Tin Snail", built for 42 years
Citroën DS (1955–1975) – a radically advanced, large family sedan, seen as shark like, built for 20 years
Citroën HY (1947–1981) – in corrugated steel sheet, practical delivery van, built for 34 yearsThe 1955 Citroën DS placed third in the 1999 Car of the Century competition, behind the Ford Model T and BMC Mini.
Lefèbvre died of hemiplegia on 4 May 1964.

Georges Tradée Bouton (1847–1938) was a French toymaker and engineer who with fellow Frenchman Jules-Albert de Dion founded the De Dion-Bouton company in 1883. The pair first worked together in 1882 to produce a self-propelled steam vehicle. The result gave birth to the company which, at the time, went under the name de Dion.
Bouton was the nominal winner of the 'world's first motor race' on 28 April 1887, when he drove a de Dion-Bouton vehicle 2 kilometers from Neuilly Bridge to the Bois de Boulogne. He was also the only competitor.

Louis Mékarski (in Polish Ludwik Mękarski) (1843, Clermont-Ferrand, France – 1923) was a French engineer and inventor of Polish origin. In the 1870s he invented the so-called Mekarski system of compressed-air powered trams which was used in several cities of France and USA as alternative to horse-powered and steam-powered trams.