Barbara Hale, a Hollywood leading lady of the 1940s and 1950s who had a long television career as the devoted secretary Della Street to Raymond Burr’s tireless defense lawyer Perry Mason, died Jan. 26 at her home in Sherman Oaks, Calif.. She was 94. Hale was the matriarch of a show business family that included her late husband, actor Bill Williams, who starred in the 1950s western series “The Adventures of Kit Carson,” and their son, William Katt, who played the title role in the early 1980s TV series “The Greatest American Hero,” confirmed the death and said the cause was complications from chronic obstructive pulmonary disease. Although Hale had a flourishing career in movies — often in wholesome roles opposite stars such as James Stewart, James Cagney and Robert Mitchum — she found her big-screen career overshadowed by her work on CBS’s “Perry Mason.” The series aired from 1957 to 1966, making it one of the longest-airing courtroom shows in history, and Hale earned an Emmy Award for her role as Street.