Suburb of Johannesburg adjoinng Albertskroon, to the South-East of it. It was laid out in 1896 on the Farm 'Waterval' and was named in honour of the owner, Hendrick Abraham Alberts, who was affectionately known as 'Hennie'.
Black Africans make up the majority of the Population, of the Suburb. Whilst English, is the main Language spoken followed closely by Afrikaans, this is according to, 2011 Population Statistics taken.
References
New Dictionary of South African Place Names by Peter E. Raper.
https://www.geni.com/people/Hendrik-Alberts-b1c1d7e1/6000000028563751535
census 2011
Further Reading
https://www.ancestry.com/search/places/africa/south_africa/