Correspondence set aside by Boosey & Hawkes because of its particular archival value, involving individuals with names beginning with letters between W- and Z-.
Correspondence set aside by Boosey & Hawkes because of its particular archival value, involving individuals with names beginning with letters E- or F-.
Correspondence set aside by Boosey & Hawkes because of its particular archival value, involving individuals with names beginning with letters between H- and K-.
Correspondence set aside by Boosey & Hawkes because of its particular archival value, involving individuals with names beginning with letters between M- and Q-.