The first article is was written by Brian Cargin and Basil Loveridge.

It is titled James Powell & Sons (Whitefriars) Ltd - A Brief History

It was written as a pre-courser to the Museum of London Book being written and bought out in 1996. The article dates anywhere from 1995 - 1996. I was unable to date precisely. 

The second article is written by Lesley Jackson Pre Manchester exhibition. 

Its from the "Antiques Bulletin" Magazine issue number 630 Dated January 13th - 19th 1996


Article Number 3 is named, Lesley Jackson her final thoughts.
Whitefriars Glass, Part Three: The post-war years
Lesley Jackson concludes her series on Whitefriars glass with a look at the Scandinavian
Modern Style (1930-1965)
I was unable to get a date for the publication but will continue to look. 

The fourth article is by Phil Elis and talks about the Lesley Jackson Exhibition.

It was again published in "Antiques Bulletin" issue number 663 dated 28th September -  4th October 1996


Below i have included images which accompanied these articles.

They are in no particular order.