[1][2] Branch was born in Bethnal Green in the East End of London, where he established a boot factory.
In 1889 he was elected to the first London County Council as a member of the Liberal-backed Progressive Party representing Bethnal Green South West until 1907.
[3][2][4][1][5][6][7][8] He was a justice of the peace for the County of London, and well known for his philanthropic work in the East End and as a prominent member of the Congregational Church.
[1] At the 1906 general election Branch successfully contested the parliamentary constituency of Enfield, one of many Liberals who unseated sitting Conservative MPs.
[2] He was defeated at the next election in January 1910, following a campaign where his Conservative opponents alleged that he was a Polish Jew and was using a false name.