Black and white photograph, 12.6 x 10.1 cm. Image of Lockhart at an international dinner, Feb. 20, 1965. Photographer unknown.

Black and white photograph, 12.6 x 10.1 cm. Image of Lockhart at an international dinner, Feb. 20, 1965. Photographer unknown.

Black and white photograph, 12.6 x 10.1 cm. Image of Lockhart at an international dinner, Feb. 20, 1965. Photographer unknown.

Black and white photograph, 17.6 x 12.7 cm. Image of Lockhart at a dinner in Winnipeg, Feb. 1964. Photograph taken by Paramount Studio.

Black and white photograph, 34.8 x 15.3 cm. Group photograph, possibly of Student Christian Movement Canadian Delegation to 1939 World Conference of Christian Youth, ca. late 1930s-1940s. Photographer unknown.

Black and white photograph, 35.2 x 20.3 cm. Image of a University of Toronto CUTC dinner, ca. late 1930s – mid-1940s (possibly 1939-1946). Photographer unknown.

Sepia photograph, 25.4 x 20.4 cm. Image of Lockhart as a university student, possibly ca. mid-1920s – early 1930s. Photograph by Toronto Panoramic Photography Co.

Black and white photograph, 24.7 x 19.6 cm. Image of Lockhart as a university student, possibly ca. mid-1920s – early 1930s. Photographer unknown.

Sepia photograph, 24.3 x 20.3 cm. Image of Lockhart as a university student, possibly ca. mid-1920s – early 1930s. Photograph by Toronto Panoramic Photography Co.

Black and white photograph, 8.95 x 8.9 cm. Image of Lockhart at a Rotary celebration, Nov. 1965. Photographer unknown.