Daniel Joseph Jaffé

Otto Jaffe was Mayor of Belfast. See

6 מגילות יחש של משפחת יפה- צבי יפה 1996/ גניגר ישראל- עמוד

https://en.wikipedia.org/wiki/Otto_Jaffe

Excerpt: In 1852, his parents, Daniel Joseph and Frederiké brought their family of four boys and five girls from Hamburg to Belfast. Daniel Jaffe along with his older sons, Martin, John and Alfred, set up a business exporting linen. See separate article on Daniel Joseph Jaffé for Martin's younger son. Otto was educated at Mr Tate’s school in Holywood, County Down, and later in Hamburg and Switzerland.

https://en.wikipedia.org/wiki/Daniel_Joseph_Jaffé

Excerpt:

Daniel Joseph Jaffé (born on 2 November 1876 in London and died 11 June 1921 in Croydon, England) was a civil engineer and the younger son of Martin Jaffé and grandson of Sir Otto Jaffé. Jaffe Road, a street in Wan Chai and Causeway Bay, Hong Kong was named after him.

There is more information about the Jaffe brothers in Isaac Julius Weinberg's autobiography as Isaac took his first job with them and knew them both well, eg "The heads of the firm of Gebriider Jaffé were the two brothers, Isaac and Daniel Jaffé; the first lived in Hamburg, but Daniel went later to Dundee and Belfast, where he lived" (36 references to 'Jaffe')

...... IJW's autobiography (Reminiscenses of my Life' is now online: https://hcommons.org/deposits/objects/hc:43758/datastreams/CONTENT/...
Also found by googling 'Isaac Julius Weinberg', select Humanities Commons, scroll to bottom and select 'View in Browser'

6 מגילות יחש של משפחת יפה- צבי יפה 1996/ גניגר ישראל- עמוד