American actress Elizabeth McGovern is best known today for her role as Lady Cora, Countess of Grantham, in the long-running "Downton Abbey" series. However, she is also an Academy-Award winning nominee for her performance in the film of "Ragtime" as chorus girl and actress Evelyn Nesbitt. Since the early 1990s when she moved to London, she has often appeared on the West End stage. Now she has come to our shores as H…