He was born John Porter Archdale on 3 April 1855, the son of Nicholas Montgomery Archdale of Crock-na-crieve, co. Fermanagh. He studied at The King's School, Worcester and Caius College, Cambridge, then resided at Belle Isle in County Fermanagh. He adopted his unusual surname of Porter-Porter in 1876, replacing Archdale with Porter, in accordance with the terms of an inheritance.
Porter-Porter was elected to the first Senate of Northern Ireland for the Ulster Unionist Party, despite his lack of political experience. He retired from the Senate in 1937, and died two years later. He had married Josephine, the eldest daughter of Jesse Lloyd of Co. Monaghan. 
- thepeerage.com suggests he was born in 1853, but Alumni Cantabrigienses and the Introduction to the Porter family papers held at PRONI agree in giving the year as 1855.
- John F. Harbinson, The Ulster Unionist Party, 1882-1973, p.205
- "Archdale or Archdall [post Porter], John Porter (ARCL874JP)". A Cambridge Alumni Database. University of Cambridge.
- Person Page 18995, thePeerage.com
- Kelly's Handbook to the Titled,Landed and Official Classes. 1916.