Only one drawing by J.B. Trinick online--Waite's portrait
http://www.adepti.com/adepti.orig/ports4.html
I just posted elsewhere I was trying to look for name variations and found a John Trinick and found a stained glass artist of England and Melbourne, Australia...but I don't know if there's any relationship....
Later: I found out John Trinick was a Christian mystic and perhaps his book on alchemy might have more information. The information below has the website link, scroll down to the bottom...note that Waite is not mentioned, but the indications are they are of the same time and may have moved in the same circles...
The Stained Glass Windows
The churches impressive stained glass windows are the work of John Trinick, who born in Melbourne, Australia, on 17 August 1890, sailing to England with his parents in 1893 before returning to Australia in 1907. He studied in the art school of the National Gallery of Victoria between 1910 and 1915 before returning to England in 1919 to continue his studies at the Byam Shaw and Vicat Cole school of Art.
Trinick began to specialise in glass in 1921 when in joined the studios of William Morris Merton and ten years later is opened his own studio in Upper Norwood, London. He rapidly became famous for the quality of his work, exhibiting widely at The Royal Academy, the Walker Art Gallery in Liverpool and in Vitoria, Spain, in addition to providing stained glass windows for several churches, including a complete set of chapel windows for St. Michael's in 1951. Among his other work was a panel, Opus Sectile, depicting Our Lady of Walsingham in Westminster Cathedral; 11 windows for St. Pius X, London and the entire chapel scheme for Salmerston Grange, Margate.
He was also an accomplished illustrator in watercolour, pencil, pastel and crayon, a collection of Trinick's watercolour copies of European stained glass windows being purchased by the Victoria and Albert Museum, where it forms part of the V and A archives.
Although the majority of Trinick's work involved ecclesiastical commissions, he did not limit his exploration of spirituality to Christianity. He actively explored many modes of thinking throughout his life, including Rosicruianism and Freemasonry. He had a strong interest in alchemy and other forms of ancient spirituality. In 1922 he published a book of poetry entitled Dead Sanctuary and, in 1967, at the age of 84, he published a philosophical volume, The Fire Tried Stone, an appraisal of the work of Carl Jung.
John Trinick died in 1974, many of his designs returning to Australia...
http://www.geocities.com/stmichaelstockwell/history/full_history.html
Melbournites, you might be able to find a Christian mystic linked with Waite if you see his windows and drawings...
I'll post here if I find anything else.
Regards,
Cerulean