plato died in may 1957 in louisville, kentucky. he was a nationally-recognized as a pioneer an african-american architect and builder during the early 20th century. he began his career at a time when segregation and racism made it challenging for african-american professionals such as architects. plato "was admired and respected" in the community. he once commented, "my whole goal in life has been to improve and help others who come up behind me." according to his wife, elnora plato, he "was a pioneer for years and he wanted his business to live. then, too, he wanted to inspire young engineers."