Re the Garcke family, I have a small family tree for them. Some details are:
Emile Oscar Garcke, born Preußen, Saxony 1856, emigrated to Britain (possibly with other members of his family, including a (name unknown) brother - there was apparently a lot of emigration from Saxony at that time.
Became Naturalised British Subject 17 March 1880.
Married Alice Maria Withers 1882.
In 1883 was the secretary of the Anglo-Brush Light Corporation Ltd (an offshoot of the American Brush company).
By 1891 he was Managing Director of Brush Electrical Engineering, as the company had become, divorced from its American ancestry.
From 1910 to 1923 (and probably until his death in 1930) he lived at ‘Ditton House’, Pinkneys Green, Maidenhead, Berkshire.
He had one child, Sidney Emile Garcke, born Fulham 1885
Sidney married Clare Lorrain (b. 1883) in 1908, and by 1911 was living at ‘Little Ditton’, Harrow Lane, Maidenhead, Berks.
In the ‘20s their address was ‘Wye Lodge’, Belmont Park Ave, Maidenhead but by 1945 they were at 26 Harcourt Close, Cavendish Square, London. Sidney died in Hove, Sussex in the last quarter of 1948.
Sidney and Clare had two children,
Kenneth Emile Garcke (born Maidenhead 1909) who by 1938 was a Barrister-At-Law at Farrars, London. By the 1950s he resided at
‘Snowball Farm’, Dorney Wood Rd, Burnham, Essex.
Elizabeth Drusilla Alice Claire Garcke (born Maidenhead 16 June 1913) who as already mentioned in a previous post married John Spencer Wills in 1936.