Complex sentence: The June 20,1949 edition of "Life" magazine featured "70 Sculptors" by Herbert Gehr, a photograph of 70 of the sculptors seated on the staircase of the museum's Great Hall and surrounded by a number of their works.
Split into simpler sentences: The June 20,1949 issue of "Life" magazine featured the photograph "70 Sculptors" by Herbert Gehr. It showed 70 of the sculptors seated on the staircase of the museum's Great Hall and surrounded by a number of their works.