I am omitting all dates and details other than where the person was important to Aaron or Rebecca.  I do have these details in my family tree.

Mowcha married 3 times.

1st marriage

Channa  b1825 Birzai Lithuania d 13 Sept 1861 Riga Latvia

Children  
Mane
Elisah
Israel Jankel
Sheva-Dina
Itsyk

2nd marriage

Pesya-Lavrinovitch b 1844 Birzai d 22 April 1875 Latvia

Children

Samuil -Leib
Roche-Friede
Haim-Abe
Efraims-Helmans
Abram-Judel

3rd Marriage

Dveire Berman b 1844 in Jekabpils (was Jakobstadt)  Latvia d 6th August 1897 in Riga.

Children

Only Aaron


                                                                                                        Samuil-Leib Dorfman


Samuel Dorfman  half brother to Aaron was born 8 March 1863 in Riga and died 5th July 1925 in Jhb South Africa. He married Ella Friedman b 1860 and d 19th August 1944 in Jhb South Africa.

He went ahead to Manchester England and was helpful to Aaron and to other immigrants from Latvia arriving in Manchester.

Samuel and Ella had many children born in Manchester England.
Shlovo b Dec1885 Manchester
Isadore b 1890 Manchester
Rebecca aka Bessie Vera b 1892 Manchester
Sarah aka Nancy b 1897 Manchester
Jane
Molly-Victoria(Sprinza-Amelia) b 1901 Manchester


The family emigrated to South Africa ahead of Aaron and settled in Johannesburg.