Does anyone know who holds the copyright's to the McLaughlin & Reilly music collection?
The Holy Cross Hymnal was originally published in 1915 by Cardinal O'Connell who at the time was sole owner of the copyright. Now in 1944 when Cardinal O'Connell died, a special edition of the hymnal was published under M&R. The 1944 special edition is different from the 1915 edtion by an Appendix of traditional Benediction hymns (O Salutaris Hostia, Tantum Ergo, etc.).
McL & R were bought by Birchard which was in turn bought by Warner-Chappell. The original but not the 1944 would be public domain. The 1944 COULD be PD if it was not renewed, and it's possible that it might not have been considered valuable in 1971-72. You'd need to find the list of copyright renewals online for that year. I can't do that dig now because I'm off to a medical appointment.
Any material in the 1915 edition would be in the public domain.
The copyright filing for the new edition in 1945 was made in 1946, and appears to cover only the new material in the appendix, which is arranged by James Reilly and Edward Grey (pseud.)
A renewal was filed 17 May 1973 for that material, in the name of "A. P. Schmidt Co.", so the arrangements appear to be protected until 2040.
Yes, that's the same copyright registration info I found on the Copyright Office website; and the renewal in 1973 looks similar, so, as far as I can tell, they only asserted a claim for the arrangements in the appendix.
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