Raymond Burr died, but Hale's real-life son William Katt played the role of Paul Drake, Jr. The movie was so successful that Burr made a total of 26 Perry Mason television films before his death. Many were filmed in and around Denver, Colorado. By 1993, when Burr signed with NBC for another season of Mason films, he was using a wheelchair full-time because of his failing health. In his final Perry Mason movie, "The Case of the Killer Kiss", he was shown either sitting or standing while leaning on a table, but only once standing unsupported for a few seconds. Twelve more
Thomas Burr Osborne (chemist) Thomas Burr Osborne (chemist) Thomas Burr Osborne (August 5, 1859 – January 29, 1929) was a biochemist and early discoverer of Vitamin A. He is known for his work isolating and characterizing seed proteins, and for determining protein nutritional requirements. His career was spent at the Connecticut Agricultural Experiment Station. Thomas was the son of lawyer Arthur Dimon Osborne and the grandson of US Representative Thomas Burr Osborne. His life exhibited "a single purpose, the understanding of the relationships of proteins to each other and the animal world. He began his researches upon vegetable proteins in 1888..." He published his