Dr. Albert C. Johnston; ‘Lost Boundaries’ Author

Dr. Albert C. Johnston, 87, a black whose experience of passing as a white physician in New Hampshire during the 1930s was the subject of the the movie “Lost Boundaries.� Johnston’s racial secret came to light in Keene, N.H., in 1940 when he was refused a commission in the Navy because he admitted being black, his son Albert C. Johnston Jr. said. Actor Mel Ferrer portrayed the elder Johnston in Louis de Rochemont’s 1949 production of “Lost Boundaries,� which was based on W. L. White’s book of the same title. Johnston continued to work in Keene until the mid-1960s, when he moved to Kauai, Hawaii, where he was a radiologist at Wilcox Memorial Hospital. In Honolulu on June 23.