Penwarden, Ernest
Ernest Penwarden (1870-1930) was a draughtsman of stained glass and opus sectile for James Powell & Sons. The son of a tailor’s cutter, he was probably introduced to stained glass and Powells by his older brother, John Edwin Penwarden (1862-1937), a glass painter who joined Powells in 1885 and who in later life worked for Ninian Comper. Many of the early projects with which he was involved are unattributed, but from the early 1890s up to his death in 1930 he was associated with over 1,100 works both for customers in the UK and overseas.
Sources:
Archives of James Powell and Sons held at the Archive of Art and Design, V and A London Compiled by Dr Dennis Hadley
The list of employees of Whitefriars Glass by Wendy Evans, Catherine Ross and Alex Werner (cited by Tony Benyon in Three case studies of research into 19th-century glass painters in The Journal of Stained Glass, Vol. XXIV, 2000)