Many useful facts can be gained from contemporary newpaper cuttings. Here are some interesting facts that can be taken from The Times newspaper cuttings about Sandow's business and family events:
From the forthcoming marriages column in The Times, announcing Lorraine Sandow's engagement.
The bankruptcy notice relating to Sandow.
Sandow's Times obituary.
Notice in The Times (16th October 1925) regarding Sandow's funeral.
Much information can be gained from searching newspaper archives, and as Sandow was world famous, he appears in hundreds of archived articles. The UK Times is full of them, as is this, The British Newspaper Archive.