Theodore Penleigh Boyd was an Australian painter active in the early 20th century. Boyd was born in England. His parents were both established artists, and he studied with them as well as at the National Gallery Art School in Victoria.
He traveled in Europe and was influenced by the painters he met in Paris to take up the practice of plein air painting, which he practiced in in Australia, drawing comparisons to Arthur Streeton.
Unfortunately, there aren’t many examples of his work online. Perhaps that’s partly because he isn’t as well known outside of Australia as he might be, and partly because his career was not long. Boyd’s life and career were cut short by a car accident at the age of 33.