One more puzzle here: where does the fictional Johannes Brahms Proch come from? The name seems to be a conflation of Johannes Brahms and Heinrich Proch, and Nimbus have corrected the composer to just Johannes Brahms.
Note also that according to Nimbus these tracks were recorded in 1912.
Hi Gill Sans, I enjoy a good puzzle so... I'm pretty sure the composer in question is Luigi Venzano (1814-1878). The composition is apparently also known as "Grande Valse". I could find no mention of him in my reference books, but there is a page for him at DAHR, plus there is this brief entry from The Violoncello and Its History by Joseph von Wasielewski, ca. 1894, at Project Gutenberg:
"Luigi Venzano must be mentioned as one of the first distinguished Italian cellists of this century. He was born in Genoa about 1815, and was solo cellist in the orchestra of the Theatre Carlo Felice, as well as teacher at the musical institute of his native town. He died on January 27, 1878. As a composer he devoted himself to vocal and stage compositions."
Luisa Tetrazzini was highly regarded in her day (she lived from 1871 to 1940) as an operatic soprano, and the sleeve notes mention the 'Cedar' noise reduction system for restoring historic recordings.
One puzzle here is the identity of the composer Venzano who is shown with only his last name. The entire album seems to have been released subsequently on Nimbus, so one day we may see that entered in Classical World, and the identity of Venzano may be revealed.