Edwin Wells Windsor
Edwin Wells Windsor was born on 27 March 1837 at Le Petit-Quevilly, Seine-Maritime, Normandy, France. He was the son of Edwin Nicholas Windsor and Eliza Windsor (née Brewster). However, according to I Mech E records, he was born in 1841 and became a member of the Institution in 1886.
Educated in London
1874 He married Charlotte Louisa Hall (1845-1925) in London in 1874. Her parents were John Davis Hall(1809-1855), a millwright, baptised in Dartford, and Rosetta Langdale (or Landale). Some or all of their children were born in Rouen.
1906 Obituary 
EDWIN WELLS WINDSOR was born on 27th March 1837 at Rouen, where his father was an engineer at the works of Messrs. Hall, Powell, and Scott.
In 1850 his father became proprietor of the works, ten years later admitting his son into partnership; and from 1883 the latter had sole control.
The chief productions have been steam-engines of all descriptions and waterworks pumping machinery, of which he had made installations in many towns in France, notably Paris, Roubaix, Tourcoing, Angers, Rheims, &c., also the very large pumps for the Canal de Briare.
He also installed the pumping plant for Lisbon, in recognition of which work he received the Order of the Cross of Christ of Portugal.
Among his inventions and improvements may be mentioned an expansion cut-off gear, designed in conjunction with his brother-in-law, Mr. Hall, which effected considerable fuel economy, and has been extensively adopted in France. On the introduction of the Corliss engine, he commenced its manufacture, which caused a large extension of his business. At various exhibitions he received medals, and was awarded the Cross of the Legion of Honour at the Paris Exhibition in 1889.
His death took place at his residence in Rouen, after a short illness, on 13th November 1906, in his seventieth year.
He became a Member of this Institution in 1886.
He married Charlotte Louisa Hall (1845-1925) in London on 5 March 1874. Children: Edwin John Windsor, 1874-1942, who continued as a steam engine maker, Loisa Blanche Elisa, Alfred George, Henry Charles, Francis William.
Charlotte's parents were John Davis Hall (1809-1855) and Rosetta (nee Langdale or Landale), who had married in Dartford, 28 May 1840). John Davis Hall (baptised at Dartford in 1809) was the son of Edward Hall and Charlotte Davis who had married in Frindsbury, Kent, in 1805. Some or all of the children were born in Rouen.
Sources of Information
-  Geni website - Edwin-Nicholas Windsor
- Mechanical engineer records
- 1906 Institution of Mechanical Engineers: Obituaries