John Collier (1850–1934); portrait painter.
John Collier (1850–1934; Oxford DNB); portrait painter. Published several works on painting including an art primer and an oil painting manual.
Oxford Dictionary of National Biography Entry
“Collier, John,” The History of the Society of Authors, 1884–1914, accessed August 10, 2022, https://historysoa.com/people/Collier-John.