Orpha Mae Klinker (1891–1964) was an American artist well known for her California plein air landscape paintings and etchings as well as her portraiture and early California historic sites. She was also an active illustrator and graphic designer. Klinker was recognized for her series of historical and pioneer paintings. She painted a series of portraits of notable Californians and memorialized many historic early California structures on canvas. On October 14, 1963, she was awarded a resolution by the City Council of Los Angeles, recognizing her outstanding professional skill and appreciation for the many honors she has brought to the city. The commendatory scroll praised Klinker for her role as an oil painter and mentioned many of her portrait subjects such as General John C. Frémont, And