Consists of 130 folders containing a vast archive of correspondence to Rev. Horace B. McKenna, S.J. from various members of his family. Includes a large number of letters from Thomas E. Ambrose, S.J.; Anne W. McKenna; Helen McKenna; Julia McKenna; Laura McKenna; and Mary McKenna. The letters date from 1923 to 1953. Arranged into folders alphabetically by last name of correspondent and then arranged chronologically within each folder.