Found your query, better late than never.
I have nothing at all to do with the people you mentioned and not really knowing what you have (or don´t have) i had a look around and found the following.
Children from Andreas Nicolaus Muhl and Catharina Marie nee Junge
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Emilie Margaretha Henriette Muhl
B: 23Oct1868
D: 27Oct1915
Marriage: 27 April 1893, Martin Jens Johannis Schönberg, born 18 Nov 1868, died 1950 in Hamburg.
Father: August Philipp Wilhelm Schönberg
Mother: Johanna Henriette Dorothea nee Struntius
Children:
1.Carl Wilhelm Heinrich Schönberg, born 5 Dec 1894. Died 20 Aug 1966 in Hamburg.
Marriage: 10 Dec 1920, Käthe Sophie Henriette Hillebrandt, born 2 Nov 1897 in Geestemünde
2.Minna Friederike Schönberg, born 11 Sept 1893
3.Paula Catharina Schönberg, born 11 Sept 1893. Died 25 March 1895
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Julius Heinrich Friedrich Muhl
B: 8Mar1873
D: 11Dec1942
Marriage: 4 Oct 1901, Marie Louise Bertha Blohm, born 24 July 1879
Father: Adolph Martin Blohm
Mother: Carolina Sophia Dorothea nee Zimmermann
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Wilhelm Johann Jacob Muhl
B: 5Aug1876
D: 22May1946 Hamburg
Marriage: 15 April 1904, Johanna Marie Clara Blohm, born 30 July 1882
Father: Adolph Martin Blohm
Mother: Carolina Sophia Dorothea nee Zimmermann
22 Aug 1944 divorced
i have the corresponding doc´s
Regards
Dave