Russell Simpson(1880-1959)

With eight Technicolor films through 1939, it was thought he held the record for work in early Technicolor. They are: Ramona (1936), Gold is Where You Find It (1938), Sons of the Plains [short] (1938), Valley of the Giants (1938), Heart of the North (1938), Dodge City (1939), The Bill of Rights [short] (1939) and Drums Along the Mohawk (1939). However, checking the IMDb's own list reveals that Jack Mower has appeared in far more, with a total of fourteen up to the end of 1939.