Fonds contains music manuscripts and published scores, photographs, and autograph letters written by well-known composers such as Jacques Offenbach, Giuseppe Verdi, and John Philip Sousa. Through his work as a music critic and journalist in Toronto and Halifax, Logan communicated with many prominent Canadian musicians in the early twentieth century. Many of the scores, photographs, and autographs included in this collection are a result of his contributions to music criticism. The music and theatre programs are frequently annotated with comments for reviews, and most of his correspondence with musicians and actors relates to his work as a music and theatre critic. Some of the scores were given to Logan as gifts from performers while others were sent to him for review or publication in newspapers. There are several manuscripts of songs by Edith Jessie Archibald, a prominent social activist and suffragist in Halifax. Letters sent to Logan also concern his poetic contributions, and there is a manuscript draft of one of his books, Preludes: Sonnets and other Verses (1906).
File contains an autographed photograph of the Canadian violinist, teacher, conductor, and composer Frank Edward Blachford (1879-1957) addressed to Dr. J.D. Logan in appreciation of his writing on music in Toronto.
File contains a photograph of Harry Dean, a Canadian conductor, pianist, organist, and music educator. He is known for founding the Maritime Academy of Music and the Nova Scotia Registered Music Teachers' Association in Halifax, Nova Scotia.
File contains an autographed photograph of the Montreal-born opera singer Louise Edvina Edwardes (nee Martin), known by her stage name "Madame Edvina." File also contains a print of Louise Edvina in costume from the opera "Tosca" by Giacomo Puccini. Logan's notes on the reverse side of the print and at the bottom of the photograph indicate that she was known for her creation of the title role of Louise in an opera by Gustave Charpentier.
File contains two photographs of the operatic soprano Esther Ferrobini of the Montreal Opera Company that John Daniel Logan used for a press release about her performance in the title role of the opera "Zoza."
File contains a photograph of the Band of the Irish Guards, directed by Charles H. Hassell (1866-1935). The photograph was likely given to John Daniel Logan on one of their Canadian tours in Toronto, Ontario.
File contains three photographs of the opera singer Christie MacDonald of the Montreal Opera Company. One of the photographs shows her in costume for "The Spring Maid" by Heinrich Reinhardt, and another in costume as Marguerite for the "Jewel Song" in "Faust" by Charles Gounod for the Montreal Opera Company.
File contains two autographed photographs of the English actor John Martin-Harvey, signed for John Daniel Logan following a performance in Halifax on May 19, 1921. One of the photographs shows him in costume for a role.